Add base_font_size and convert font sizes to rem

Now, font size is inherited from `base_font_size` which should be in absolute units.

DESCRIPTION

     showtext,
     sysfonts,
     testthat (>= 2.1.0),
-    xaringan
+    xaringan,
+    vdiffr
 VignetteBuilder: 
     knitr
 Encoding: UTF-8

R/ggplot2.R

   }
 }
 
-web_to_point <- function(x, px_per_em = 16, scale = 1) {
+web_to_point <- function(x, px_per_em = NULL, scale = 1) {
   if (is.null(x)) {
     return(NULL)
   }
+  px_per_em <- px_per_em %||% get_base_font_size()
   if (grepl("pt$", x)) {
     return(as.numeric(sub("pt$", "", x)))
   } else if (grepl("px$", x)) {
     x <- as.numeric(sub("px$", "", x))
     return(x * 0.75)
-  } else if (grepl("em$", x)) {
-    x <- as.numeric(sub("em$", "", x))
+  } else if (grepl("r?em$", x)) {
+    x <- as.numeric(sub("r?em$", "", x))
     return(x * px_per_em * 0.75)
   } else {
     return()
   }
 }
+
+get_base_font_size <- function() {
+  base_size <- xaringanthemer_env[["base_font_size"]]
+  if (is.null(base_size)) {
+    base_size <- xaringanthemer_env[["text_font_size"]]
+  }
+  if (!grepl("px", base_size)) {
+    # assume 16px base font size
+    16
+  } else {
+    as.numeric(sub("px", "", base_size))
+  }
+}

R/style_duo.R

 #' @param link_color Link Color. Defaults to `secondary_color`. Modifies the `a, a > code` elements.
 #' @param text_bold_color Bold Text Color. Defaults to `secondary_color`. Modifies the `strong` element.
 #' @param text_slide_number_color Slide Number Color. Defaults to `text_color`. Modifies the `.remark-slide-number` class.
-#' @param padding Slide Padding in `top right [bottom left]` format. Defaults to 1rem 4rem 1rem 4rem. Modifies the `.remark-slide-content` class.
+#' @param padding Slide Padding in `top right [bottom left]` format. Defaults to 16px 64px 16px 64px. Modifies the `.remark-slide-content` class.
 #' @param background_image Background image applied to each *and every* slide. Set `title_slide_background_image = "none"` to remove the background image from the title slide. Defaults to `NULL`. Modifies the `.remark-slide-content` class.
 #' @param background_size Background image size, requires `background_image` to be set. If `background_image` is set, `background_size` will default to `cover` so the backround fills the screen. If both `background_image` and `background_position` are set, will default to 100 percent. Defaults to `NULL`. Modifies the `.remark-slide-content` class.
 #' @param background_position Background image position, requires `background_image` to be set, and it is recommended to adjust `background_size`. Defaults to `NULL`. Modifies the `.remark-slide-content` class.
 #' @param code_highlight_color Code Line Highlight. Defaults to rgba(255,255,0,0.5). Modifies the `.remark-code-line-highlighted` class.
 #' @param code_inline_color Inline Code Color. Defaults to `secondary_color`. Modifies the `.remark-inline-code` class.
 #' @param code_inline_background_color Inline Code Background Color. Defaults to `NULL`. Modifies the `.remark-inline-code` class.
-#' @param code_inline_font_size Inline Code Text Font Size. Defaults to 1em. Modifies the `.remark-inline-code` class.
+#' @param code_inline_font_size Inline Code Text Font Size. Defaults to 1rem. Modifies the `.remark-inline-code` class.
 #' @param inverse_background_color Inverse Background Color. Defaults to `secondary_color`. Modifies the `.inverse` class.
 #' @param inverse_text_color Inverse Text Color. Defaults to `primary_color`. Modifies the `.inverse` class.
 #' @param inverse_text_shadow Enables Shadow on text of inverse slides. Defaults to `FALSE`. Modifies the `.inverse` class.
 #' @param title_slide_background_size Title Slide Background Image Size, defaults to "cover" if background image is set. Defaults to `NULL`. Modifies the `.title-slide` class.
 #' @param title_slide_background_position Title Slide Background Image Position. Defaults to `NULL`. Modifies the `.title-slide` class.
 #' @param footnote_color Footnote text color (if `NA`, then it will be the same color as `text_color`). Defaults to `NULL`. Modifies the `.footnote` class.
-#' @param footnote_font_size Footnote font size. Defaults to 0.9em. Modifies the `.footnote` class.
-#' @param footnote_position_bottom Footnote location from bottom of screen. Defaults to 3em. Modifies the `.footnote` class.
+#' @param footnote_font_size Footnote font size. Defaults to 0.9rem. Modifies the `.footnote` class.
+#' @param footnote_position_bottom Footnote location from bottom of screen. Defaults to 60px. Modifies the `.footnote` class.
 #' @param left_column_subtle_color Left Column Text (not last). Defaults to `apply_alpha(secondary_color, 0.6)`. Modifies the `.left-column h2, .left-column h3` classes.
 #' @param left_column_selected_color Left Column Current Selection. Defaults to `secondary_color`. Modifies the `.left-column h2:last-of-type, .left-column h3:last-child` classes.
 #' @param blockquote_left_border_color Blockquote Left Border Color. Defaults to `apply_alpha(secondary_color, 0.5)`. Modifies the `blockquote` element.
 #' @param table_border_color Table top/bottom border. Defaults to #666. Modifies the `table: border-top, border-bottom` elements.
 #' @param table_row_border_color Table row inner bottom border. Defaults to #ddd. Modifies the `table thead th: border-bottom` elements.
 #' @param table_row_even_background_color Table Even Row Background Color. Defaults to `lighten_color(primary_color, 0.3)`. Modifies the `thead, tfoot, tr:nth-child(even)` elements.
-#' @param text_font_size Slide Body Text Font Size. Defaults to 20px. Modifies the `.remark-slide-content` class.
-#' @param header_h1_font_size h1 Header Text Font Size. Defaults to 55px. Modifies the `.remark-slide-content h1` class.
-#' @param header_h2_font_size h2 Header Text Font Size. Defaults to 45px. Modifies the `.remark-slide-content h2` class.
-#' @param header_h3_font_size h3 Header Text Font Size. Defaults to 35px. Modifies the `.remark-slide-content h3` class.
+#' @param base_font_size Base Font Size for All Slide Elements (must be `px`). Defaults to 20px. Modifies the `html` element.
+#' @param text_font_size Slide Body Text Font Size. Defaults to 1rem. Modifies the `.remark-slide-content` class.
+#' @param header_h1_font_size h1 Header Text Font Size. Defaults to 2.75rem. Modifies the `.remark-slide-content h1` class.
+#' @param header_h2_font_size h2 Header Text Font Size. Defaults to 2.25rem. Modifies the `.remark-slide-content h2` class.
+#' @param header_h3_font_size h3 Header Text Font Size. Defaults to 1.75rem. Modifies the `.remark-slide-content h3` class.
 #' @param header_background_auto Add background under slide title automatically for h1 header elements. If not enabled, use `class: header_background` to enable. Defaults to `FALSE`. 
 #' @param header_background_color Background Color for h1 Header with Background. Defaults to `header_color`. Modifies the `.remark-slide-content h1` class.
 #' @param header_background_text_color Text Color for h1 Header with Background. Defaults to `background_color`. Modifies the `.remark-slide-content h1` class.
 #' @param header_background_padding Padding for h1 Header with Background. Defaults to 2rem 4rem 1.5rem 4rem. Modifies the `.remark-slide-content h1` class.
 #' @param header_background_content_padding_top Top Padding for Content in Slide with Header with Background. Defaults to 7rem. Modifies the `.remark-slide-content` class.
 #' @param header_background_ignore_classes Slide Classes Where Header with Background will not be Applied. Defaults to `c('normal', 'inverse', 'title', 'middle', 'bottom')`. Modifies the `.remark-slide-content` class.
-#' @param text_slide_number_font_size Slide Number Text Font Size. Defaults to 0.9em. Modifies the `.remark-slide-number` class.
+#' @param text_slide_number_font_size Slide Number Text Font Size. Defaults to 0.9rem. Modifies the `.remark-slide-number` class.
 #' @param text_font_google Use `google_font()` to specify body font. Defaults to `NULL`. Modifies the `body` element.
 #' @param text_font_family Body Text Font Family. Defaults to 'Droid Serif'. Modifies the `body` element.
 #' @param text_font_weight Body Text Font Weight. Defaults to normal. Modifies the `body` element.
 #' @param header_font_url Header Font URL. Defaults to https://fonts.googleapis.com/css?family=Yanone+Kaffeesatz. Modifies the `@import url` elements.
 #' @param code_font_google Use `google_font()` to specify code font. Defaults to `NULL`. Modifies the `body` element.
 #' @param code_font_family Code Font Family. Defaults to 'Source Code Pro'. Modifies the `.remark-code, .remark-inline-code` classes.
-#' @param code_font_size Code Text Font Size. Defaults to 0.9em. Modifies the `.remark-inline` class.
+#' @param code_font_size Code Text Font Size. Defaults to 0.9rem. Modifies the `.remark-inline` class.
 #' @param code_font_url Code Font URL. Defaults to https://fonts.googleapis.com/css?family=Source+Code+Pro:400,700. Modifies the `@import url` elements.
 #' @param code_font_family_fallback Code Font Fallback. Defaults to 'Lucida Console', Monaco. Modifies the `.remark-code, .remark-inline-code` classes.
 #' @param colors A named vector of custom colors. The names of the colors
   link_color = secondary_color,
   text_bold_color = secondary_color,
   text_slide_number_color = text_color,
-  padding = "1rem 4rem 1rem 4rem",
+  padding = "16px 64px 16px 64px",
   background_image = NULL,
   background_size = NULL,
   background_position = NULL,
   code_highlight_color = "rgba(255,255,0,0.5)",
   code_inline_color = secondary_color,
   code_inline_background_color = NULL,
-  code_inline_font_size = "1em",
+  code_inline_font_size = "1rem",
   inverse_background_color = secondary_color,
   inverse_text_color = primary_color,
   inverse_text_shadow = FALSE,
   title_slide_background_size = NULL,
   title_slide_background_position = NULL,
   footnote_color = NULL,
-  footnote_font_size = "0.9em",
-  footnote_position_bottom = "3em",
+  footnote_font_size = "0.9rem",
+  footnote_position_bottom = "60px",
   left_column_subtle_color = apply_alpha(secondary_color, 0.6),
   left_column_selected_color = secondary_color,
   blockquote_left_border_color = apply_alpha(secondary_color, 0.5),
   table_border_color = "#666",
   table_row_border_color = "#ddd",
   table_row_even_background_color = lighten_color(primary_color, 0.3),
-  text_font_size = "20px",
-  header_h1_font_size = "55px",
-  header_h2_font_size = "45px",
-  header_h3_font_size = "35px",
+  base_font_size = "20px",
+  text_font_size = "1rem",
+  header_h1_font_size = "2.75rem",
+  header_h2_font_size = "2.25rem",
+  header_h3_font_size = "1.75rem",
   header_background_auto = FALSE,
   header_background_color = header_color,
   header_background_text_color = background_color,
   header_background_padding = "2rem 4rem 1.5rem 4rem",
   header_background_content_padding_top = "7rem",
   header_background_ignore_classes = c('normal', 'inverse', 'title', 'middle', 'bottom'),
-  text_slide_number_font_size = "0.9em",
+  text_slide_number_font_size = "0.9rem",
   text_font_google = NULL,
   text_font_family = "'Droid Serif'",
   text_font_weight = "normal",
   header_font_url = "https://fonts.googleapis.com/css?family=Yanone+Kaffeesatz",
   code_font_google = NULL,
   code_font_family = "'Source Code Pro'",
-  code_font_size = "0.9em",
+  code_font_size = "0.9rem",
   code_font_url = "https://fonts.googleapis.com/css?family=Source+Code+Pro:400,700",
   code_font_family_fallback = "'Lucida Console', Monaco",
   colors = NULL,

R/style_duo_accent.R

 #' @param link_color Link Color. Defaults to `choose_dark_or_light(secondary_color, primary_color, secondary_color)`. Modifies the `a, a > code` elements.
 #' @param text_bold_color Bold Text Color. Defaults to `choose_dark_or_light(secondary_color, primary_color, secondary_color)`. Modifies the `strong` element.
 #' @param text_slide_number_color Slide Number Color. Defaults to `primary_color`. Modifies the `.remark-slide-number` class.
-#' @param padding Slide Padding in `top right [bottom left]` format. Defaults to 1rem 4rem 1rem 4rem. Modifies the `.remark-slide-content` class.
+#' @param padding Slide Padding in `top right [bottom left]` format. Defaults to 16px 64px 16px 64px. Modifies the `.remark-slide-content` class.
 #' @param background_image Background image applied to each *and every* slide. Set `title_slide_background_image = "none"` to remove the background image from the title slide. Defaults to `NULL`. Modifies the `.remark-slide-content` class.
 #' @param background_size Background image size, requires `background_image` to be set. If `background_image` is set, `background_size` will default to `cover` so the backround fills the screen. If both `background_image` and `background_position` are set, will default to 100 percent. Defaults to `NULL`. Modifies the `.remark-slide-content` class.
 #' @param background_position Background image position, requires `background_image` to be set, and it is recommended to adjust `background_size`. Defaults to `NULL`. Modifies the `.remark-slide-content` class.
 #' @param code_highlight_color Code Line Highlight. Defaults to rgba(255,255,0,0.5). Modifies the `.remark-code-line-highlighted` class.
 #' @param code_inline_color Inline Code Color. Defaults to `choose_dark_or_light(secondary_color, primary_color, secondary_color)`. Modifies the `.remark-inline-code` class.
 #' @param code_inline_background_color Inline Code Background Color. Defaults to `NULL`. Modifies the `.remark-inline-code` class.
-#' @param code_inline_font_size Inline Code Text Font Size. Defaults to 1em. Modifies the `.remark-inline-code` class.
+#' @param code_inline_font_size Inline Code Text Font Size. Defaults to 1rem. Modifies the `.remark-inline-code` class.
 #' @param inverse_background_color Inverse Background Color. Defaults to `secondary_color`. Modifies the `.inverse` class.
 #' @param inverse_text_color Inverse Text Color. Defaults to `choose_dark_or_light(secondary_color, black_color, white_color)`. Modifies the `.inverse` class.
 #' @param inverse_text_shadow Enables Shadow on text of inverse slides. Defaults to `FALSE`. Modifies the `.inverse` class.
 #' @param title_slide_background_size Title Slide Background Image Size, defaults to "cover" if background image is set. Defaults to `NULL`. Modifies the `.title-slide` class.
 #' @param title_slide_background_position Title Slide Background Image Position. Defaults to `NULL`. Modifies the `.title-slide` class.
 #' @param footnote_color Footnote text color (if `NA`, then it will be the same color as `text_color`). Defaults to `NULL`. Modifies the `.footnote` class.
-#' @param footnote_font_size Footnote font size. Defaults to 0.9em. Modifies the `.footnote` class.
-#' @param footnote_position_bottom Footnote location from bottom of screen. Defaults to 3em. Modifies the `.footnote` class.
+#' @param footnote_font_size Footnote font size. Defaults to 0.9rem. Modifies the `.footnote` class.
+#' @param footnote_position_bottom Footnote location from bottom of screen. Defaults to 60px. Modifies the `.footnote` class.
 #' @param left_column_subtle_color Left Column Text (not last). Defaults to `apply_alpha(primary_color, 0.6)`. Modifies the `.left-column h2, .left-column h3` classes.
 #' @param left_column_selected_color Left Column Current Selection. Defaults to `primary_color`. Modifies the `.left-column h2:last-of-type, .left-column h3:last-child` classes.
 #' @param blockquote_left_border_color Blockquote Left Border Color. Defaults to `apply_alpha(secondary_color, 0.5)`. Modifies the `blockquote` element.
 #' @param table_border_color Table top/bottom border. Defaults to #666. Modifies the `table: border-top, border-bottom` elements.
 #' @param table_row_border_color Table row inner bottom border. Defaults to #ddd. Modifies the `table thead th: border-bottom` elements.
 #' @param table_row_even_background_color Table Even Row Background Color. Defaults to `lighten_color(secondary_color, 0.3)`. Modifies the `thead, tfoot, tr:nth-child(even)` elements.
-#' @param text_font_size Slide Body Text Font Size. Defaults to 20px. Modifies the `.remark-slide-content` class.
-#' @param header_h1_font_size h1 Header Text Font Size. Defaults to 55px. Modifies the `.remark-slide-content h1` class.
-#' @param header_h2_font_size h2 Header Text Font Size. Defaults to 45px. Modifies the `.remark-slide-content h2` class.
-#' @param header_h3_font_size h3 Header Text Font Size. Defaults to 35px. Modifies the `.remark-slide-content h3` class.
+#' @param base_font_size Base Font Size for All Slide Elements (must be `px`). Defaults to 20px. Modifies the `html` element.
+#' @param text_font_size Slide Body Text Font Size. Defaults to 1rem. Modifies the `.remark-slide-content` class.
+#' @param header_h1_font_size h1 Header Text Font Size. Defaults to 2.75rem. Modifies the `.remark-slide-content h1` class.
+#' @param header_h2_font_size h2 Header Text Font Size. Defaults to 2.25rem. Modifies the `.remark-slide-content h2` class.
+#' @param header_h3_font_size h3 Header Text Font Size. Defaults to 1.75rem. Modifies the `.remark-slide-content h3` class.
 #' @param header_background_auto Add background under slide title automatically for h1 header elements. If not enabled, use `class: header_background` to enable. Defaults to `FALSE`. 
 #' @param header_background_color Background Color for h1 Header with Background. Defaults to `header_color`. Modifies the `.remark-slide-content h1` class.
 #' @param header_background_text_color Text Color for h1 Header with Background. Defaults to `background_color`. Modifies the `.remark-slide-content h1` class.
 #' @param header_background_padding Padding for h1 Header with Background. Defaults to 2rem 4rem 1.5rem 4rem. Modifies the `.remark-slide-content h1` class.
 #' @param header_background_content_padding_top Top Padding for Content in Slide with Header with Background. Defaults to 7rem. Modifies the `.remark-slide-content` class.
 #' @param header_background_ignore_classes Slide Classes Where Header with Background will not be Applied. Defaults to `c('normal', 'inverse', 'title', 'middle', 'bottom')`. Modifies the `.remark-slide-content` class.
-#' @param text_slide_number_font_size Slide Number Text Font Size. Defaults to 0.9em. Modifies the `.remark-slide-number` class.
+#' @param text_slide_number_font_size Slide Number Text Font Size. Defaults to 0.9rem. Modifies the `.remark-slide-number` class.
 #' @param text_font_google Use `google_font()` to specify body font. Defaults to `NULL`. Modifies the `body` element.
 #' @param text_font_family Body Text Font Family. Defaults to 'Droid Serif'. Modifies the `body` element.
 #' @param text_font_weight Body Text Font Weight. Defaults to normal. Modifies the `body` element.
 #' @param header_font_url Header Font URL. Defaults to https://fonts.googleapis.com/css?family=Yanone+Kaffeesatz. Modifies the `@import url` elements.
 #' @param code_font_google Use `google_font()` to specify code font. Defaults to `NULL`. Modifies the `body` element.
 #' @param code_font_family Code Font Family. Defaults to 'Source Code Pro'. Modifies the `.remark-code, .remark-inline-code` classes.
-#' @param code_font_size Code Text Font Size. Defaults to 0.9em. Modifies the `.remark-inline` class.
+#' @param code_font_size Code Text Font Size. Defaults to 0.9rem. Modifies the `.remark-inline` class.
 #' @param code_font_url Code Font URL. Defaults to https://fonts.googleapis.com/css?family=Source+Code+Pro:400,700. Modifies the `@import url` elements.
 #' @param code_font_family_fallback Code Font Fallback. Defaults to 'Lucida Console', Monaco. Modifies the `.remark-code, .remark-inline-code` classes.
 #' @param colors A named vector of custom colors. The names of the colors
   link_color = choose_dark_or_light(secondary_color, primary_color, secondary_color),
   text_bold_color = choose_dark_or_light(secondary_color, primary_color, secondary_color),
   text_slide_number_color = primary_color,
-  padding = "1rem 4rem 1rem 4rem",
+  padding = "16px 64px 16px 64px",
   background_image = NULL,
   background_size = NULL,
   background_position = NULL,
   code_highlight_color = "rgba(255,255,0,0.5)",
   code_inline_color = choose_dark_or_light(secondary_color, primary_color, secondary_color),
   code_inline_background_color = NULL,
-  code_inline_font_size = "1em",
+  code_inline_font_size = "1rem",
   inverse_background_color = secondary_color,
   inverse_text_color = choose_dark_or_light(secondary_color, black_color, white_color),
   inverse_text_shadow = FALSE,
   title_slide_background_size = NULL,
   title_slide_background_position = NULL,
   footnote_color = NULL,
-  footnote_font_size = "0.9em",
-  footnote_position_bottom = "3em",
+  footnote_font_size = "0.9rem",
+  footnote_position_bottom = "60px",
   left_column_subtle_color = apply_alpha(primary_color, 0.6),
   left_column_selected_color = primary_color,
   blockquote_left_border_color = apply_alpha(secondary_color, 0.5),
   table_border_color = "#666",
   table_row_border_color = "#ddd",
   table_row_even_background_color = lighten_color(secondary_color, 0.3),
-  text_font_size = "20px",
-  header_h1_font_size = "55px",
-  header_h2_font_size = "45px",
-  header_h3_font_size = "35px",
+  base_font_size = "20px",
+  text_font_size = "1rem",
+  header_h1_font_size = "2.75rem",
+  header_h2_font_size = "2.25rem",
+  header_h3_font_size = "1.75rem",
   header_background_auto = FALSE,
   header_background_color = header_color,
   header_background_text_color = background_color,
   header_background_padding = "2rem 4rem 1.5rem 4rem",
   header_background_content_padding_top = "7rem",
   header_background_ignore_classes = c('normal', 'inverse', 'title', 'middle', 'bottom'),
-  text_slide_number_font_size = "0.9em",
+  text_slide_number_font_size = "0.9rem",
   text_font_google = NULL,
   text_font_family = "'Droid Serif'",
   text_font_weight = "normal",
   header_font_url = "https://fonts.googleapis.com/css?family=Yanone+Kaffeesatz",
   code_font_google = NULL,
   code_font_family = "'Source Code Pro'",
-  code_font_size = "0.9em",
+  code_font_size = "0.9rem",
   code_font_url = "https://fonts.googleapis.com/css?family=Source+Code+Pro:400,700",
   code_font_family_fallback = "'Lucida Console', Monaco",
   colors = NULL,

R/style_duo_accent_inverse.R

 #' @param link_color Link Color. Defaults to `choose_dark_or_light(secondary_color, secondary_color, primary_color)`. Modifies the `a, a > code` elements.
 #' @param text_bold_color Bold Text Color. Defaults to `choose_dark_or_light(secondary_color, secondary_color, primary_color)`. Modifies the `strong` element.
 #' @param text_slide_number_color Slide Number Color. Defaults to `primary_color`. Modifies the `.remark-slide-number` class.
-#' @param padding Slide Padding in `top right [bottom left]` format. Defaults to 1rem 4rem 1rem 4rem. Modifies the `.remark-slide-content` class.
+#' @param padding Slide Padding in `top right [bottom left]` format. Defaults to 16px 64px 16px 64px. Modifies the `.remark-slide-content` class.
 #' @param background_image Background image applied to each *and every* slide. Set `title_slide_background_image = "none"` to remove the background image from the title slide. Defaults to `NULL`. Modifies the `.remark-slide-content` class.
 #' @param background_size Background image size, requires `background_image` to be set. If `background_image` is set, `background_size` will default to `cover` so the backround fills the screen. If both `background_image` and `background_position` are set, will default to 100 percent. Defaults to `NULL`. Modifies the `.remark-slide-content` class.
 #' @param background_position Background image position, requires `background_image` to be set, and it is recommended to adjust `background_size`. Defaults to `NULL`. Modifies the `.remark-slide-content` class.
 #' @param code_highlight_color Code Line Highlight. Defaults to rgba(255,255,0,0.5). Modifies the `.remark-code-line-highlighted` class.
 #' @param code_inline_color Inline Code Color. Defaults to `choose_dark_or_light(secondary_color, secondary_color, primary_color)`. Modifies the `.remark-inline-code` class.
 #' @param code_inline_background_color Inline Code Background Color. Defaults to `NULL`. Modifies the `.remark-inline-code` class.
-#' @param code_inline_font_size Inline Code Text Font Size. Defaults to 1em. Modifies the `.remark-inline-code` class.
+#' @param code_inline_font_size Inline Code Text Font Size. Defaults to 1rem. Modifies the `.remark-inline-code` class.
 #' @param inverse_background_color Inverse Background Color. Defaults to `secondary_color`. Modifies the `.inverse` class.
 #' @param inverse_text_color Inverse Text Color. Defaults to `choose_dark_or_light(secondary_color, black_color, white_color)`. Modifies the `.inverse` class.
 #' @param inverse_text_shadow Enables Shadow on text of inverse slides. Defaults to `FALSE`. Modifies the `.inverse` class.
 #' @param title_slide_background_size Title Slide Background Image Size, defaults to "cover" if background image is set. Defaults to `NULL`. Modifies the `.title-slide` class.
 #' @param title_slide_background_position Title Slide Background Image Position. Defaults to `NULL`. Modifies the `.title-slide` class.
 #' @param footnote_color Footnote text color (if `NA`, then it will be the same color as `text_color`). Defaults to `NULL`. Modifies the `.footnote` class.
-#' @param footnote_font_size Footnote font size. Defaults to 0.9em. Modifies the `.footnote` class.
-#' @param footnote_position_bottom Footnote location from bottom of screen. Defaults to 3em. Modifies the `.footnote` class.
+#' @param footnote_font_size Footnote font size. Defaults to 0.9rem. Modifies the `.footnote` class.
+#' @param footnote_position_bottom Footnote location from bottom of screen. Defaults to 60px. Modifies the `.footnote` class.
 #' @param left_column_subtle_color Left Column Text (not last). Defaults to `apply_alpha(primary_color, 0.6)`. Modifies the `.left-column h2, .left-column h3` classes.
 #' @param left_column_selected_color Left Column Current Selection. Defaults to `primary_color`. Modifies the `.left-column h2:last-of-type, .left-column h3:last-child` classes.
 #' @param blockquote_left_border_color Blockquote Left Border Color. Defaults to `apply_alpha(secondary_color, 0.5)`. Modifies the `blockquote` element.
 #' @param table_border_color Table top/bottom border. Defaults to #666. Modifies the `table: border-top, border-bottom` elements.
 #' @param table_row_border_color Table row inner bottom border. Defaults to #ddd. Modifies the `table thead th: border-bottom` elements.
 #' @param table_row_even_background_color Table Even Row Background Color. Defaults to `darken_color(choose_dark_or_light(primary_color, secondary_color, primary_color), 0.3)`. Modifies the `thead, tfoot, tr:nth-child(even)` elements.
-#' @param text_font_size Slide Body Text Font Size. Defaults to 20px. Modifies the `.remark-slide-content` class.
-#' @param header_h1_font_size h1 Header Text Font Size. Defaults to 55px. Modifies the `.remark-slide-content h1` class.
-#' @param header_h2_font_size h2 Header Text Font Size. Defaults to 45px. Modifies the `.remark-slide-content h2` class.
-#' @param header_h3_font_size h3 Header Text Font Size. Defaults to 35px. Modifies the `.remark-slide-content h3` class.
+#' @param base_font_size Base Font Size for All Slide Elements (must be `px`). Defaults to 20px. Modifies the `html` element.
+#' @param text_font_size Slide Body Text Font Size. Defaults to 1rem. Modifies the `.remark-slide-content` class.
+#' @param header_h1_font_size h1 Header Text Font Size. Defaults to 2.75rem. Modifies the `.remark-slide-content h1` class.
+#' @param header_h2_font_size h2 Header Text Font Size. Defaults to 2.25rem. Modifies the `.remark-slide-content h2` class.
+#' @param header_h3_font_size h3 Header Text Font Size. Defaults to 1.75rem. Modifies the `.remark-slide-content h3` class.
 #' @param header_background_auto Add background under slide title automatically for h1 header elements. If not enabled, use `class: header_background` to enable. Defaults to `FALSE`. 
 #' @param header_background_color Background Color for h1 Header with Background. Defaults to `header_color`. Modifies the `.remark-slide-content h1` class.
 #' @param header_background_text_color Text Color for h1 Header with Background. Defaults to `background_color`. Modifies the `.remark-slide-content h1` class.
 #' @param header_background_padding Padding for h1 Header with Background. Defaults to 2rem 4rem 1.5rem 4rem. Modifies the `.remark-slide-content h1` class.
 #' @param header_background_content_padding_top Top Padding for Content in Slide with Header with Background. Defaults to 7rem. Modifies the `.remark-slide-content` class.
 #' @param header_background_ignore_classes Slide Classes Where Header with Background will not be Applied. Defaults to `c('normal', 'inverse', 'title', 'middle', 'bottom')`. Modifies the `.remark-slide-content` class.
-#' @param text_slide_number_font_size Slide Number Text Font Size. Defaults to 0.9em. Modifies the `.remark-slide-number` class.
+#' @param text_slide_number_font_size Slide Number Text Font Size. Defaults to 0.9rem. Modifies the `.remark-slide-number` class.
 #' @param text_font_google Use `google_font()` to specify body font. Defaults to `NULL`. Modifies the `body` element.
 #' @param text_font_family Body Text Font Family. Defaults to 'Droid Serif'. Modifies the `body` element.
 #' @param text_font_weight Body Text Font Weight. Defaults to normal. Modifies the `body` element.
 #' @param header_font_url Header Font URL. Defaults to https://fonts.googleapis.com/css?family=Yanone+Kaffeesatz. Modifies the `@import url` elements.
 #' @param code_font_google Use `google_font()` to specify code font. Defaults to `NULL`. Modifies the `body` element.
 #' @param code_font_family Code Font Family. Defaults to 'Source Code Pro'. Modifies the `.remark-code, .remark-inline-code` classes.
-#' @param code_font_size Code Text Font Size. Defaults to 0.9em. Modifies the `.remark-inline` class.
+#' @param code_font_size Code Text Font Size. Defaults to 0.9rem. Modifies the `.remark-inline` class.
 #' @param code_font_url Code Font URL. Defaults to https://fonts.googleapis.com/css?family=Source+Code+Pro:400,700. Modifies the `@import url` elements.
 #' @param code_font_family_fallback Code Font Fallback. Defaults to 'Lucida Console', Monaco. Modifies the `.remark-code, .remark-inline-code` classes.
 #' @param colors A named vector of custom colors. The names of the colors
   link_color = choose_dark_or_light(secondary_color, secondary_color, primary_color),
   text_bold_color = choose_dark_or_light(secondary_color, secondary_color, primary_color),
   text_slide_number_color = primary_color,
-  padding = "1rem 4rem 1rem 4rem",
+  padding = "16px 64px 16px 64px",
   background_image = NULL,
   background_size = NULL,
   background_position = NULL,
   code_highlight_color = "rgba(255,255,0,0.5)",
   code_inline_color = choose_dark_or_light(secondary_color, secondary_color, primary_color),
   code_inline_background_color = NULL,
-  code_inline_font_size = "1em",
+  code_inline_font_size = "1rem",
   inverse_background_color = secondary_color,
   inverse_text_color = choose_dark_or_light(secondary_color, black_color, white_color),
   inverse_text_shadow = FALSE,
   title_slide_background_size = NULL,
   title_slide_background_position = NULL,
   footnote_color = NULL,
-  footnote_font_size = "0.9em",
-  footnote_position_bottom = "3em",
+  footnote_font_size = "0.9rem",
+  footnote_position_bottom = "60px",
   left_column_subtle_color = apply_alpha(primary_color, 0.6),
   left_column_selected_color = primary_color,
   blockquote_left_border_color = apply_alpha(secondary_color, 0.5),
   table_border_color = "#666",
   table_row_border_color = "#ddd",
   table_row_even_background_color = darken_color(choose_dark_or_light(primary_color, secondary_color, primary_color), 0.3),
-  text_font_size = "20px",
-  header_h1_font_size = "55px",
-  header_h2_font_size = "45px",
-  header_h3_font_size = "35px",
+  base_font_size = "20px",
+  text_font_size = "1rem",
+  header_h1_font_size = "2.75rem",
+  header_h2_font_size = "2.25rem",
+  header_h3_font_size = "1.75rem",
   header_background_auto = FALSE,
   header_background_color = header_color,
   header_background_text_color = background_color,
   header_background_padding = "2rem 4rem 1.5rem 4rem",
   header_background_content_padding_top = "7rem",
   header_background_ignore_classes = c('normal', 'inverse', 'title', 'middle', 'bottom'),
-  text_slide_number_font_size = "0.9em",
+  text_slide_number_font_size = "0.9rem",
   text_font_google = NULL,
   text_font_family = "'Droid Serif'",
   text_font_weight = "normal",
   header_font_url = "https://fonts.googleapis.com/css?family=Yanone+Kaffeesatz",
   code_font_google = NULL,
   code_font_family = "'Source Code Pro'",
-  code_font_size = "0.9em",
+  code_font_size = "0.9rem",
   code_font_url = "https://fonts.googleapis.com/css?family=Source+Code+Pro:400,700",
   code_font_family_fallback = "'Lucida Console', Monaco",
   colors = NULL,

R/style_mono_accent.R

 #' @param link_color Link Color. Defaults to `base_color`. Modifies the `a, a > code` elements.
 #' @param text_bold_color Bold Text Color. Defaults to `base_color`. Modifies the `strong` element.
 #' @param text_slide_number_color Slide Number Color. Defaults to `base_color`. Modifies the `.remark-slide-number` class.
-#' @param padding Slide Padding in `top right [bottom left]` format. Defaults to 1rem 4rem 1rem 4rem. Modifies the `.remark-slide-content` class.
+#' @param padding Slide Padding in `top right [bottom left]` format. Defaults to 16px 64px 16px 64px. Modifies the `.remark-slide-content` class.
 #' @param background_image Background image applied to each *and every* slide. Set `title_slide_background_image = "none"` to remove the background image from the title slide. Defaults to `NULL`. Modifies the `.remark-slide-content` class.
 #' @param background_size Background image size, requires `background_image` to be set. If `background_image` is set, `background_size` will default to `cover` so the backround fills the screen. If both `background_image` and `background_position` are set, will default to 100 percent. Defaults to `NULL`. Modifies the `.remark-slide-content` class.
 #' @param background_position Background image position, requires `background_image` to be set, and it is recommended to adjust `background_size`. Defaults to `NULL`. Modifies the `.remark-slide-content` class.
 #' @param code_highlight_color Code Line Highlight. Defaults to rgba(255,255,0,0.5). Modifies the `.remark-code-line-highlighted` class.
 #' @param code_inline_color Inline Code Color. Defaults to `base_color`. Modifies the `.remark-inline-code` class.
 #' @param code_inline_background_color Inline Code Background Color. Defaults to `NULL`. Modifies the `.remark-inline-code` class.
-#' @param code_inline_font_size Inline Code Text Font Size. Defaults to 1em. Modifies the `.remark-inline-code` class.
+#' @param code_inline_font_size Inline Code Text Font Size. Defaults to 1rem. Modifies the `.remark-inline-code` class.
 #' @param inverse_background_color Inverse Background Color. Defaults to `base_color`. Modifies the `.inverse` class.
 #' @param inverse_text_color Inverse Text Color. Defaults to `white_color`. Modifies the `.inverse` class.
 #' @param inverse_text_shadow Enables Shadow on text of inverse slides. Defaults to `FALSE`. Modifies the `.inverse` class.
 #' @param title_slide_background_size Title Slide Background Image Size, defaults to "cover" if background image is set. Defaults to `NULL`. Modifies the `.title-slide` class.
 #' @param title_slide_background_position Title Slide Background Image Position. Defaults to `NULL`. Modifies the `.title-slide` class.
 #' @param footnote_color Footnote text color (if `NA`, then it will be the same color as `text_color`). Defaults to `NULL`. Modifies the `.footnote` class.
-#' @param footnote_font_size Footnote font size. Defaults to 0.9em. Modifies the `.footnote` class.
-#' @param footnote_position_bottom Footnote location from bottom of screen. Defaults to 3em. Modifies the `.footnote` class.
+#' @param footnote_font_size Footnote font size. Defaults to 0.9rem. Modifies the `.footnote` class.
+#' @param footnote_position_bottom Footnote location from bottom of screen. Defaults to 60px. Modifies the `.footnote` class.
 #' @param left_column_subtle_color Left Column Text (not last). Defaults to `apply_alpha(base_color, 0.6)`. Modifies the `.left-column h2, .left-column h3` classes.
 #' @param left_column_selected_color Left Column Current Selection. Defaults to `base_color`. Modifies the `.left-column h2:last-of-type, .left-column h3:last-child` classes.
 #' @param blockquote_left_border_color Blockquote Left Border Color. Defaults to `apply_alpha(base_color, 0.5)`. Modifies the `blockquote` element.
 #' @param table_border_color Table top/bottom border. Defaults to #666. Modifies the `table: border-top, border-bottom` elements.
 #' @param table_row_border_color Table row inner bottom border. Defaults to #ddd. Modifies the `table thead th: border-bottom` elements.
 #' @param table_row_even_background_color Table Even Row Background Color. Defaults to `lighten_color(base_color, 0.7)`. Modifies the `thead, tfoot, tr:nth-child(even)` elements.
-#' @param text_font_size Slide Body Text Font Size. Defaults to 20px. Modifies the `.remark-slide-content` class.
-#' @param header_h1_font_size h1 Header Text Font Size. Defaults to 55px. Modifies the `.remark-slide-content h1` class.
-#' @param header_h2_font_size h2 Header Text Font Size. Defaults to 45px. Modifies the `.remark-slide-content h2` class.
-#' @param header_h3_font_size h3 Header Text Font Size. Defaults to 35px. Modifies the `.remark-slide-content h3` class.
+#' @param base_font_size Base Font Size for All Slide Elements (must be `px`). Defaults to 20px. Modifies the `html` element.
+#' @param text_font_size Slide Body Text Font Size. Defaults to 1rem. Modifies the `.remark-slide-content` class.
+#' @param header_h1_font_size h1 Header Text Font Size. Defaults to 2.75rem. Modifies the `.remark-slide-content h1` class.
+#' @param header_h2_font_size h2 Header Text Font Size. Defaults to 2.25rem. Modifies the `.remark-slide-content h2` class.
+#' @param header_h3_font_size h3 Header Text Font Size. Defaults to 1.75rem. Modifies the `.remark-slide-content h3` class.
 #' @param header_background_auto Add background under slide title automatically for h1 header elements. If not enabled, use `class: header_background` to enable. Defaults to `FALSE`. 
 #' @param header_background_color Background Color for h1 Header with Background. Defaults to `header_color`. Modifies the `.remark-slide-content h1` class.
 #' @param header_background_text_color Text Color for h1 Header with Background. Defaults to `background_color`. Modifies the `.remark-slide-content h1` class.
 #' @param header_background_padding Padding for h1 Header with Background. Defaults to 2rem 4rem 1.5rem 4rem. Modifies the `.remark-slide-content h1` class.
 #' @param header_background_content_padding_top Top Padding for Content in Slide with Header with Background. Defaults to 7rem. Modifies the `.remark-slide-content` class.
 #' @param header_background_ignore_classes Slide Classes Where Header with Background will not be Applied. Defaults to `c('normal', 'inverse', 'title', 'middle', 'bottom')`. Modifies the `.remark-slide-content` class.
-#' @param text_slide_number_font_size Slide Number Text Font Size. Defaults to 0.9em. Modifies the `.remark-slide-number` class.
+#' @param text_slide_number_font_size Slide Number Text Font Size. Defaults to 0.9rem. Modifies the `.remark-slide-number` class.
 #' @param text_font_google Use `google_font()` to specify body font. Defaults to `NULL`. Modifies the `body` element.
 #' @param text_font_family Body Text Font Family. Defaults to 'Droid Serif'. Modifies the `body` element.
 #' @param text_font_weight Body Text Font Weight. Defaults to normal. Modifies the `body` element.
 #' @param header_font_url Header Font URL. Defaults to https://fonts.googleapis.com/css?family=Yanone+Kaffeesatz. Modifies the `@import url` elements.
 #' @param code_font_google Use `google_font()` to specify code font. Defaults to `NULL`. Modifies the `body` element.
 #' @param code_font_family Code Font Family. Defaults to 'Source Code Pro'. Modifies the `.remark-code, .remark-inline-code` classes.
-#' @param code_font_size Code Text Font Size. Defaults to 0.9em. Modifies the `.remark-inline` class.
+#' @param code_font_size Code Text Font Size. Defaults to 0.9rem. Modifies the `.remark-inline` class.
 #' @param code_font_url Code Font URL. Defaults to https://fonts.googleapis.com/css?family=Source+Code+Pro:400,700. Modifies the `@import url` elements.
 #' @param code_font_family_fallback Code Font Fallback. Defaults to 'Lucida Console', Monaco. Modifies the `.remark-code, .remark-inline-code` classes.
 #' @param colors A named vector of custom colors. The names of the colors
   link_color = base_color,
   text_bold_color = base_color,
   text_slide_number_color = base_color,
-  padding = "1rem 4rem 1rem 4rem",
+  padding = "16px 64px 16px 64px",
   background_image = NULL,
   background_size = NULL,
   background_position = NULL,
   code_highlight_color = "rgba(255,255,0,0.5)",
   code_inline_color = base_color,
   code_inline_background_color = NULL,
-  code_inline_font_size = "1em",
+  code_inline_font_size = "1rem",
   inverse_background_color = base_color,
   inverse_text_color = white_color,
   inverse_text_shadow = FALSE,
   title_slide_background_size = NULL,
   title_slide_background_position = NULL,
   footnote_color = NULL,
-  footnote_font_size = "0.9em",
-  footnote_position_bottom = "3em",
+  footnote_font_size = "0.9rem",
+  footnote_position_bottom = "60px",
   left_column_subtle_color = apply_alpha(base_color, 0.6),
   left_column_selected_color = base_color,
   blockquote_left_border_color = apply_alpha(base_color, 0.5),
   table_border_color = "#666",
   table_row_border_color = "#ddd",
   table_row_even_background_color = lighten_color(base_color, 0.7),
-  text_font_size = "20px",
-  header_h1_font_size = "55px",
-  header_h2_font_size = "45px",
-  header_h3_font_size = "35px",
+  base_font_size = "20px",
+  text_font_size = "1rem",
+  header_h1_font_size = "2.75rem",
+  header_h2_font_size = "2.25rem",
+  header_h3_font_size = "1.75rem",
   header_background_auto = FALSE,
   header_background_color = header_color,
   header_background_text_color = background_color,
   header_background_padding = "2rem 4rem 1.5rem 4rem",
   header_background_content_padding_top = "7rem",
   header_background_ignore_classes = c('normal', 'inverse', 'title', 'middle', 'bottom'),
-  text_slide_number_font_size = "0.9em",
+  text_slide_number_font_size = "0.9rem",
   text_font_google = NULL,
   text_font_family = "'Droid Serif'",
   text_font_weight = "normal",
   header_font_url = "https://fonts.googleapis.com/css?family=Yanone+Kaffeesatz",
   code_font_google = NULL,
   code_font_family = "'Source Code Pro'",
-  code_font_size = "0.9em",
+  code_font_size = "0.9rem",
   code_font_url = "https://fonts.googleapis.com/css?family=Source+Code+Pro:400,700",
   code_font_family_fallback = "'Lucida Console', Monaco",
   colors = NULL,

R/style_mono_accent_inverse.R

 #' @param link_color Link Color. Defaults to `base_color`. Modifies the `a, a > code` elements.
 #' @param text_bold_color Bold Text Color. Defaults to `base_color`. Modifies the `strong` element.
 #' @param text_slide_number_color Slide Number Color. Defaults to `base_color`. Modifies the `.remark-slide-number` class.
-#' @param padding Slide Padding in `top right [bottom left]` format. Defaults to 1rem 4rem 1rem 4rem. Modifies the `.remark-slide-content` class.
+#' @param padding Slide Padding in `top right [bottom left]` format. Defaults to 16px 64px 16px 64px. Modifies the `.remark-slide-content` class.
 #' @param background_image Background image applied to each *and every* slide. Set `title_slide_background_image = "none"` to remove the background image from the title slide. Defaults to `NULL`. Modifies the `.remark-slide-content` class.
 #' @param background_size Background image size, requires `background_image` to be set. If `background_image` is set, `background_size` will default to `cover` so the backround fills the screen. If both `background_image` and `background_position` are set, will default to 100 percent. Defaults to `NULL`. Modifies the `.remark-slide-content` class.
 #' @param background_position Background image position, requires `background_image` to be set, and it is recommended to adjust `background_size`. Defaults to `NULL`. Modifies the `.remark-slide-content` class.
 #' @param code_highlight_color Code Line Highlight. Defaults to rgba(255,255,0,0.5). Modifies the `.remark-code-line-highlighted` class.
 #' @param code_inline_color Inline Code Color. Defaults to `base_color`. Modifies the `.remark-inline-code` class.
 #' @param code_inline_background_color Inline Code Background Color. Defaults to `NULL`. Modifies the `.remark-inline-code` class.
-#' @param code_inline_font_size Inline Code Text Font Size. Defaults to 1em. Modifies the `.remark-inline-code` class.
+#' @param code_inline_font_size Inline Code Text Font Size. Defaults to 1rem. Modifies the `.remark-inline-code` class.
 #' @param inverse_background_color Inverse Background Color. Defaults to `base_color`. Modifies the `.inverse` class.
 #' @param inverse_text_color Inverse Text Color. Defaults to `black_color`. Modifies the `.inverse` class.
 #' @param inverse_text_shadow Enables Shadow on text of inverse slides. Defaults to `FALSE`. Modifies the `.inverse` class.
 #' @param title_slide_background_size Title Slide Background Image Size, defaults to "cover" if background image is set. Defaults to `NULL`. Modifies the `.title-slide` class.
 #' @param title_slide_background_position Title Slide Background Image Position. Defaults to `NULL`. Modifies the `.title-slide` class.
 #' @param footnote_color Footnote text color (if `NA`, then it will be the same color as `text_color`). Defaults to `NULL`. Modifies the `.footnote` class.
-#' @param footnote_font_size Footnote font size. Defaults to 0.9em. Modifies the `.footnote` class.
-#' @param footnote_position_bottom Footnote location from bottom of screen. Defaults to 3em. Modifies the `.footnote` class.
+#' @param footnote_font_size Footnote font size. Defaults to 0.9rem. Modifies the `.footnote` class.
+#' @param footnote_position_bottom Footnote location from bottom of screen. Defaults to 60px. Modifies the `.footnote` class.
 #' @param left_column_subtle_color Left Column Text (not last). Defaults to `apply_alpha(base_color, 0.6)`. Modifies the `.left-column h2, .left-column h3` classes.
 #' @param left_column_selected_color Left Column Current Selection. Defaults to `base_color`. Modifies the `.left-column h2:last-of-type, .left-column h3:last-child` classes.
 #' @param blockquote_left_border_color Blockquote Left Border Color. Defaults to `apply_alpha(base_color, 0.5)`. Modifies the `blockquote` element.
 #' @param table_border_color Table top/bottom border. Defaults to #666. Modifies the `table: border-top, border-bottom` elements.
 #' @param table_row_border_color Table row inner bottom border. Defaults to #ddd. Modifies the `table thead th: border-bottom` elements.
 #' @param table_row_even_background_color Table Even Row Background Color. Defaults to `darken_color(base_color, 0.7)`. Modifies the `thead, tfoot, tr:nth-child(even)` elements.
-#' @param text_font_size Slide Body Text Font Size. Defaults to 20px. Modifies the `.remark-slide-content` class.
-#' @param header_h1_font_size h1 Header Text Font Size. Defaults to 55px. Modifies the `.remark-slide-content h1` class.
-#' @param header_h2_font_size h2 Header Text Font Size. Defaults to 45px. Modifies the `.remark-slide-content h2` class.
-#' @param header_h3_font_size h3 Header Text Font Size. Defaults to 35px. Modifies the `.remark-slide-content h3` class.
+#' @param base_font_size Base Font Size for All Slide Elements (must be `px`). Defaults to 20px. Modifies the `html` element.
+#' @param text_font_size Slide Body Text Font Size. Defaults to 1rem. Modifies the `.remark-slide-content` class.
+#' @param header_h1_font_size h1 Header Text Font Size. Defaults to 2.75rem. Modifies the `.remark-slide-content h1` class.
+#' @param header_h2_font_size h2 Header Text Font Size. Defaults to 2.25rem. Modifies the `.remark-slide-content h2` class.
+#' @param header_h3_font_size h3 Header Text Font Size. Defaults to 1.75rem. Modifies the `.remark-slide-content h3` class.
 #' @param header_background_auto Add background under slide title automatically for h1 header elements. If not enabled, use `class: header_background` to enable. Defaults to `FALSE`. 
 #' @param header_background_color Background Color for h1 Header with Background. Defaults to `header_color`. Modifies the `.remark-slide-content h1` class.
 #' @param header_background_text_color Text Color for h1 Header with Background. Defaults to `background_color`. Modifies the `.remark-slide-content h1` class.
 #' @param header_background_padding Padding for h1 Header with Background. Defaults to 2rem 4rem 1.5rem 4rem. Modifies the `.remark-slide-content h1` class.
 #' @param header_background_content_padding_top Top Padding for Content in Slide with Header with Background. Defaults to 7rem. Modifies the `.remark-slide-content` class.
 #' @param header_background_ignore_classes Slide Classes Where Header with Background will not be Applied. Defaults to `c('normal', 'inverse', 'title', 'middle', 'bottom')`. Modifies the `.remark-slide-content` class.
-#' @param text_slide_number_font_size Slide Number Text Font Size. Defaults to 0.9em. Modifies the `.remark-slide-number` class.
+#' @param text_slide_number_font_size Slide Number Text Font Size. Defaults to 0.9rem. Modifies the `.remark-slide-number` class.
 #' @param text_font_google Use `google_font()` to specify body font. Defaults to `NULL`. Modifies the `body` element.
 #' @param text_font_family Body Text Font Family. Defaults to 'Droid Serif'. Modifies the `body` element.
 #' @param text_font_weight Body Text Font Weight. Defaults to normal. Modifies the `body` element.
 #' @param header_font_url Header Font URL. Defaults to https://fonts.googleapis.com/css?family=Yanone+Kaffeesatz. Modifies the `@import url` elements.
 #' @param code_font_google Use `google_font()` to specify code font. Defaults to `NULL`. Modifies the `body` element.
 #' @param code_font_family Code Font Family. Defaults to 'Source Code Pro'. Modifies the `.remark-code, .remark-inline-code` classes.
-#' @param code_font_size Code Text Font Size. Defaults to 0.9em. Modifies the `.remark-inline` class.
+#' @param code_font_size Code Text Font Size. Defaults to 0.9rem. Modifies the `.remark-inline` class.
 #' @param code_font_url Code Font URL. Defaults to https://fonts.googleapis.com/css?family=Source+Code+Pro:400,700. Modifies the `@import url` elements.
 #' @param code_font_family_fallback Code Font Fallback. Defaults to 'Lucida Console', Monaco. Modifies the `.remark-code, .remark-inline-code` classes.
 #' @param colors A named vector of custom colors. The names of the colors
   link_color = base_color,
   text_bold_color = base_color,
   text_slide_number_color = base_color,
-  padding = "1rem 4rem 1rem 4rem",
+  padding = "16px 64px 16px 64px",
   background_image = NULL,
   background_size = NULL,
   background_position = NULL,
   code_highlight_color = "rgba(255,255,0,0.5)",
   code_inline_color = base_color,
   code_inline_background_color = NULL,
-  code_inline_font_size = "1em",
+  code_inline_font_size = "1rem",
   inverse_background_color = base_color,
   inverse_text_color = black_color,
   inverse_text_shadow = FALSE,
   title_slide_background_size = NULL,
   title_slide_background_position = NULL,
   footnote_color = NULL,
-  footnote_font_size = "0.9em",
-  footnote_position_bottom = "3em",
+  footnote_font_size = "0.9rem",
+  footnote_position_bottom = "60px",
   left_column_subtle_color = apply_alpha(base_color, 0.6),
   left_column_selected_color = base_color,
   blockquote_left_border_color = apply_alpha(base_color, 0.5),
   table_border_color = "#666",
   table_row_border_color = "#ddd",
   table_row_even_background_color = darken_color(base_color, 0.7),
-  text_font_size = "20px",
-  header_h1_font_size = "55px",
-  header_h2_font_size = "45px",
-  header_h3_font_size = "35px",
+  base_font_size = "20px",
+  text_font_size = "1rem",
+  header_h1_font_size = "2.75rem",
+  header_h2_font_size = "2.25rem",
+  header_h3_font_size = "1.75rem",
   header_background_auto = FALSE,
   header_background_color = header_color,
   header_background_text_color = background_color,
   header_background_padding = "2rem 4rem 1.5rem 4rem",
   header_background_content_padding_top = "7rem",
   header_background_ignore_classes = c('normal', 'inverse', 'title', 'middle', 'bottom'),
-  text_slide_number_font_size = "0.9em",
+  text_slide_number_font_size = "0.9rem",
   text_font_google = NULL,
   text_font_family = "'Droid Serif'",
   text_font_weight = "normal",
   header_font_url = "https://fonts.googleapis.com/css?family=Yanone+Kaffeesatz",
   code_font_google = NULL,
   code_font_family = "'Source Code Pro'",
-  code_font_size = "0.9em",
+  code_font_size = "0.9rem",
   code_font_url = "https://fonts.googleapis.com/css?family=Source+Code+Pro:400,700",
   code_font_family_fallback = "'Lucida Console', Monaco",
   colors = NULL,

R/style_mono_dark.R

 #' @param link_color Link Color. Defaults to `base_color`. Modifies the `a, a > code` elements.
 #' @param text_bold_color Bold Text Color. Defaults to `base_color`. Modifies the `strong` element.
 #' @param text_slide_number_color Slide Number Color. Defaults to `base_color`. Modifies the `.remark-slide-number` class.
-#' @param padding Slide Padding in `top right [bottom left]` format. Defaults to 1rem 4rem 1rem 4rem. Modifies the `.remark-slide-content` class.
+#' @param padding Slide Padding in `top right [bottom left]` format. Defaults to 16px 64px 16px 64px. Modifies the `.remark-slide-content` class.
 #' @param background_image Background image applied to each *and every* slide. Set `title_slide_background_image = "none"` to remove the background image from the title slide. Defaults to `NULL`. Modifies the `.remark-slide-content` class.
 #' @param background_size Background image size, requires `background_image` to be set. If `background_image` is set, `background_size` will default to `cover` so the backround fills the screen. If both `background_image` and `background_position` are set, will default to 100 percent. Defaults to `NULL`. Modifies the `.remark-slide-content` class.
 #' @param background_position Background image position, requires `background_image` to be set, and it is recommended to adjust `background_size`. Defaults to `NULL`. Modifies the `.remark-slide-content` class.
 #' @param code_highlight_color Code Line Highlight. Defaults to rgba(255,255,0,0.5). Modifies the `.remark-code-line-highlighted` class.
 #' @param code_inline_color Inline Code Color. Defaults to `base_color`. Modifies the `.remark-inline-code` class.
 #' @param code_inline_background_color Inline Code Background Color. Defaults to `NULL`. Modifies the `.remark-inline-code` class.
-#' @param code_inline_font_size Inline Code Text Font Size. Defaults to 1em. Modifies the `.remark-inline-code` class.
+#' @param code_inline_font_size Inline Code Text Font Size. Defaults to 1rem. Modifies the `.remark-inline-code` class.
 #' @param inverse_background_color Inverse Background Color. Defaults to `base_color`. Modifies the `.inverse` class.
 #' @param inverse_text_color Inverse Text Color. Defaults to `black_color`. Modifies the `.inverse` class.
 #' @param inverse_text_shadow Enables Shadow on text of inverse slides. Defaults to `FALSE`. Modifies the `.inverse` class.
 #' @param title_slide_background_size Title Slide Background Image Size, defaults to "cover" if background image is set. Defaults to `NULL`. Modifies the `.title-slide` class.
 #' @param title_slide_background_position Title Slide Background Image Position. Defaults to `NULL`. Modifies the `.title-slide` class.
 #' @param footnote_color Footnote text color (if `NA`, then it will be the same color as `text_color`). Defaults to `NULL`. Modifies the `.footnote` class.
-#' @param footnote_font_size Footnote font size. Defaults to 0.9em. Modifies the `.footnote` class.
-#' @param footnote_position_bottom Footnote location from bottom of screen. Defaults to 3em. Modifies the `.footnote` class.
+#' @param footnote_font_size Footnote font size. Defaults to 0.9rem. Modifies the `.footnote` class.
+#' @param footnote_position_bottom Footnote location from bottom of screen. Defaults to 60px. Modifies the `.footnote` class.
 #' @param left_column_subtle_color Left Column Text (not last). Defaults to `apply_alpha(base_color, 0.6)`. Modifies the `.left-column h2, .left-column h3` classes.
 #' @param left_column_selected_color Left Column Current Selection. Defaults to `base_color`. Modifies the `.left-column h2:last-of-type, .left-column h3:last-child` classes.
 #' @param blockquote_left_border_color Blockquote Left Border Color. Defaults to `apply_alpha(base_color, 0.5)`. Modifies the `blockquote` element.
 #' @param table_border_color Table top/bottom border. Defaults to #666. Modifies the `table: border-top, border-bottom` elements.
 #' @param table_row_border_color Table row inner bottom border. Defaults to #ddd. Modifies the `table thead th: border-bottom` elements.
 #' @param table_row_even_background_color Table Even Row Background Color. Defaults to `darken_color(base_color, 0.7)`. Modifies the `thead, tfoot, tr:nth-child(even)` elements.
-#' @param text_font_size Slide Body Text Font Size. Defaults to 20px. Modifies the `.remark-slide-content` class.
-#' @param header_h1_font_size h1 Header Text Font Size. Defaults to 55px. Modifies the `.remark-slide-content h1` class.
-#' @param header_h2_font_size h2 Header Text Font Size. Defaults to 45px. Modifies the `.remark-slide-content h2` class.
-#' @param header_h3_font_size h3 Header Text Font Size. Defaults to 35px. Modifies the `.remark-slide-content h3` class.
+#' @param base_font_size Base Font Size for All Slide Elements (must be `px`). Defaults to 20px. Modifies the `html` element.
+#' @param text_font_size Slide Body Text Font Size. Defaults to 1rem. Modifies the `.remark-slide-content` class.
+#' @param header_h1_font_size h1 Header Text Font Size. Defaults to 2.75rem. Modifies the `.remark-slide-content h1` class.
+#' @param header_h2_font_size h2 Header Text Font Size. Defaults to 2.25rem. Modifies the `.remark-slide-content h2` class.
+#' @param header_h3_font_size h3 Header Text Font Size. Defaults to 1.75rem. Modifies the `.remark-slide-content h3` class.
 #' @param header_background_auto Add background under slide title automatically for h1 header elements. If not enabled, use `class: header_background` to enable. Defaults to `FALSE`. 
 #' @param header_background_color Background Color for h1 Header with Background. Defaults to `header_color`. Modifies the `.remark-slide-content h1` class.
 #' @param header_background_text_color Text Color for h1 Header with Background. Defaults to `background_color`. Modifies the `.remark-slide-content h1` class.
 #' @param header_background_padding Padding for h1 Header with Background. Defaults to 2rem 4rem 1.5rem 4rem. Modifies the `.remark-slide-content h1` class.
 #' @param header_background_content_padding_top Top Padding for Content in Slide with Header with Background. Defaults to 7rem. Modifies the `.remark-slide-content` class.
 #' @param header_background_ignore_classes Slide Classes Where Header with Background will not be Applied. Defaults to `c('normal', 'inverse', 'title', 'middle', 'bottom')`. Modifies the `.remark-slide-content` class.
-#' @param text_slide_number_font_size Slide Number Text Font Size. Defaults to 0.9em. Modifies the `.remark-slide-number` class.
+#' @param text_slide_number_font_size Slide Number Text Font Size. Defaults to 0.9rem. Modifies the `.remark-slide-number` class.
 #' @param text_font_google Use `google_font()` to specify body font. Defaults to `NULL`. Modifies the `body` element.
 #' @param text_font_family Body Text Font Family. Defaults to 'Droid Serif'. Modifies the `body` element.
 #' @param text_font_weight Body Text Font Weight. Defaults to normal. Modifies the `body` element.
 #' @param header_font_url Header Font URL. Defaults to https://fonts.googleapis.com/css?family=Yanone+Kaffeesatz. Modifies the `@import url` elements.
 #' @param code_font_google Use `google_font()` to specify code font. Defaults to `NULL`. Modifies the `body` element.
 #' @param code_font_family Code Font Family. Defaults to 'Source Code Pro'. Modifies the `.remark-code, .remark-inline-code` classes.
-#' @param code_font_size Code Text Font Size. Defaults to 0.9em. Modifies the `.remark-inline` class.
+#' @param code_font_size Code Text Font Size. Defaults to 0.9rem. Modifies the `.remark-inline` class.
 #' @param code_font_url Code Font URL. Defaults to https://fonts.googleapis.com/css?family=Source+Code+Pro:400,700. Modifies the `@import url` elements.
 #' @param code_font_family_fallback Code Font Fallback. Defaults to 'Lucida Console', Monaco. Modifies the `.remark-code, .remark-inline-code` classes.
 #' @param colors A named vector of custom colors. The names of the colors
   link_color = base_color,
   text_bold_color = base_color,
   text_slide_number_color = base_color,
-  padding = "1rem 4rem 1rem 4rem",
+  padding = "16px 64px 16px 64px",
   background_image = NULL,
   background_size = NULL,
   background_position = NULL,
   code_highlight_color = "rgba(255,255,0,0.5)",
   code_inline_color = base_color,
   code_inline_background_color = NULL,
-  code_inline_font_size = "1em",
+  code_inline_font_size = "1rem",
   inverse_background_color = base_color,
   inverse_text_color = black_color,
   inverse_text_shadow = FALSE,
   title_slide_background_size = NULL,
   title_slide_background_position = NULL,
   footnote_color = NULL,
-  footnote_font_size = "0.9em",
-  footnote_position_bottom = "3em",
+  footnote_font_size = "0.9rem",
+  footnote_position_bottom = "60px",
   left_column_subtle_color = apply_alpha(base_color, 0.6),
   left_column_selected_color = base_color,
   blockquote_left_border_color = apply_alpha(base_color, 0.5),
   table_border_color = "#666",
   table_row_border_color = "#ddd",
   table_row_even_background_color = darken_color(base_color, 0.7),
-  text_font_size = "20px",
-  header_h1_font_size = "55px",
-  header_h2_font_size = "45px",
-  header_h3_font_size = "35px",
+  base_font_size = "20px",
+  text_font_size = "1rem",
+  header_h1_font_size = "2.75rem",
+  header_h2_font_size = "2.25rem",
+  header_h3_font_size = "1.75rem",
   header_background_auto = FALSE,
   header_background_color = header_color,
   header_background_text_color = background_color,
   header_background_padding = "2rem 4rem 1.5rem 4rem",
   header_background_content_padding_top = "7rem",
   header_background_ignore_classes = c('normal', 'inverse', 'title', 'middle', 'bottom'),
-  text_slide_number_font_size = "0.9em",
+  text_slide_number_font_size = "0.9rem",
   text_font_google = NULL,
   text_font_family = "'Droid Serif'",
   text_font_weight = "normal",
   header_font_url = "https://fonts.googleapis.com/css?family=Yanone+Kaffeesatz",
   code_font_google = NULL,
   code_font_family = "'Source Code Pro'",
-  code_font_size = "0.9em",
+  code_font_size = "0.9rem",
   code_font_url = "https://fonts.googleapis.com/css?family=Source+Code+Pro:400,700",
   code_font_family_fallback = "'Lucida Console', Monaco",
   colors = NULL,

R/style_mono_light.R

 #' @param link_color Link Color. Defaults to `base_color`. Modifies the `a, a > code` elements.
 #' @param text_bold_color Bold Text Color. Defaults to `base_color`. Modifies the `strong` element.
 #' @param text_slide_number_color Slide Number Color. Defaults to `base_color`. Modifies the `.remark-slide-number` class.
-#' @param padding Slide Padding in `top right [bottom left]` format. Defaults to 1rem 4rem 1rem 4rem. Modifies the `.remark-slide-content` class.
+#' @param padding Slide Padding in `top right [bottom left]` format. Defaults to 16px 64px 16px 64px. Modifies the `.remark-slide-content` class.
 #' @param background_image Background image applied to each *and every* slide. Set `title_slide_background_image = "none"` to remove the background image from the title slide. Defaults to `NULL`. Modifies the `.remark-slide-content` class.
 #' @param background_size Background image size, requires `background_image` to be set. If `background_image` is set, `background_size` will default to `cover` so the backround fills the screen. If both `background_image` and `background_position` are set, will default to 100 percent. Defaults to `NULL`. Modifies the `.remark-slide-content` class.
 #' @param background_position Background image position, requires `background_image` to be set, and it is recommended to adjust `background_size`. Defaults to `NULL`. Modifies the `.remark-slide-content` class.
 #' @param code_highlight_color Code Line Highlight. Defaults to rgba(255,255,0,0.5). Modifies the `.remark-code-line-highlighted` class.
 #' @param code_inline_color Inline Code Color. Defaults to `base_color`. Modifies the `.remark-inline-code` class.
 #' @param code_inline_background_color Inline Code Background Color. Defaults to `NULL`. Modifies the `.remark-inline-code` class.
-#' @param code_inline_font_size Inline Code Text Font Size. Defaults to 1em. Modifies the `.remark-inline-code` class.
+#' @param code_inline_font_size Inline Code Text Font Size. Defaults to 1rem. Modifies the `.remark-inline-code` class.
 #' @param inverse_background_color Inverse Background Color. Defaults to `base_color`. Modifies the `.inverse` class.
 #' @param inverse_text_color Inverse Text Color. Defaults to `white_color`. Modifies the `.inverse` class.
 #' @param inverse_text_shadow Enables Shadow on text of inverse slides. Defaults to `FALSE`. Modifies the `.inverse` class.
 #' @param title_slide_background_size Title Slide Background Image Size, defaults to "cover" if background image is set. Defaults to `NULL`. Modifies the `.title-slide` class.
 #' @param title_slide_background_position Title Slide Background Image Position. Defaults to `NULL`. Modifies the `.title-slide` class.
 #' @param footnote_color Footnote text color (if `NA`, then it will be the same color as `text_color`). Defaults to `NULL`. Modifies the `.footnote` class.
-#' @param footnote_font_size Footnote font size. Defaults to 0.9em. Modifies the `.footnote` class.
-#' @param footnote_position_bottom Footnote location from bottom of screen. Defaults to 3em. Modifies the `.footnote` class.
+#' @param footnote_font_size Footnote font size. Defaults to 0.9rem. Modifies the `.footnote` class.
+#' @param footnote_position_bottom Footnote location from bottom of screen. Defaults to 60px. Modifies the `.footnote` class.
 #' @param left_column_subtle_color Left Column Text (not last). Defaults to `apply_alpha(base_color, 0.6)`. Modifies the `.left-column h2, .left-column h3` classes.
 #' @param left_column_selected_color Left Column Current Selection. Defaults to `base_color`. Modifies the `.left-column h2:last-of-type, .left-column h3:last-child` classes.
 #' @param blockquote_left_border_color Blockquote Left Border Color. Defaults to `apply_alpha(base_color, 0.5)`. Modifies the `blockquote` element.
 #' @param table_border_color Table top/bottom border. Defaults to #666. Modifies the `table: border-top, border-bottom` elements.
 #' @param table_row_border_color Table row inner bottom border. Defaults to #ddd. Modifies the `table thead th: border-bottom` elements.
 #' @param table_row_even_background_color Table Even Row Background Color. Defaults to `lighten_color(base_color, 0.8)`. Modifies the `thead, tfoot, tr:nth-child(even)` elements.
-#' @param text_font_size Slide Body Text Font Size. Defaults to 20px. Modifies the `.remark-slide-content` class.
-#' @param header_h1_font_size h1 Header Text Font Size. Defaults to 55px. Modifies the `.remark-slide-content h1` class.
-#' @param header_h2_font_size h2 Header Text Font Size. Defaults to 45px. Modifies the `.remark-slide-content h2` class.
-#' @param header_h3_font_size h3 Header Text Font Size. Defaults to 35px. Modifies the `.remark-slide-content h3` class.
+#' @param base_font_size Base Font Size for All Slide Elements (must be `px`). Defaults to 20px. Modifies the `html` element.
+#' @param text_font_size Slide Body Text Font Size. Defaults to 1rem. Modifies the `.remark-slide-content` class.
+#' @param header_h1_font_size h1 Header Text Font Size. Defaults to 2.75rem. Modifies the `.remark-slide-content h1` class.
+#' @param header_h2_font_size h2 Header Text Font Size. Defaults to 2.25rem. Modifies the `.remark-slide-content h2` class.
+#' @param header_h3_font_size h3 Header Text Font Size. Defaults to 1.75rem. Modifies the `.remark-slide-content h3` class.
 #' @param header_background_auto Add background under slide title automatically for h1 header elements. If not enabled, use `class: header_background` to enable. Defaults to `FALSE`. 
 #' @param header_background_color Background Color for h1 Header with Background. Defaults to `header_color`. Modifies the `.remark-slide-content h1` class.
 #' @param header_background_text_color Text Color for h1 Header with Background. Defaults to `background_color`. Modifies the `.remark-slide-content h1` class.
 #' @param header_background_padding Padding for h1 Header with Background. Defaults to 2rem 4rem 1.5rem 4rem. Modifies the `.remark-slide-content h1` class.
 #' @param header_background_content_padding_top Top Padding for Content in Slide with Header with Background. Defaults to 7rem. Modifies the `.remark-slide-content` class.
 #' @param header_background_ignore_classes Slide Classes Where Header with Background will not be Applied. Defaults to `c('normal', 'inverse', 'title', 'middle', 'bottom')`. Modifies the `.remark-slide-content` class.
-#' @param text_slide_number_font_size Slide Number Text Font Size. Defaults to 0.9em. Modifies the `.remark-slide-number` class.
+#' @param text_slide_number_font_size Slide Number Text Font Size. Defaults to 0.9rem. Modifies the `.remark-slide-number` class.
 #' @param text_font_google Use `google_font()` to specify body font. Defaults to `NULL`. Modifies the `body` element.
 #' @param text_font_family Body Text Font Family. Defaults to 'Droid Serif'. Modifies the `body` element.
 #' @param text_font_weight Body Text Font Weight. Defaults to normal. Modifies the `body` element.
 #' @param header_font_url Header Font URL. Defaults to https://fonts.googleapis.com/css?family=Yanone+Kaffeesatz. Modifies the `@import url` elements.
 #' @param code_font_google Use `google_font()` to specify code font. Defaults to `NULL`. Modifies the `body` element.
 #' @param code_font_family Code Font Family. Defaults to 'Source Code Pro'. Modifies the `.remark-code, .remark-inline-code` classes.
-#' @param code_font_size Code Text Font Size. Defaults to 0.9em. Modifies the `.remark-inline` class.
+#' @param code_font_size Code Text Font Size. Defaults to 0.9rem. Modifies the `.remark-inline` class.
 #' @param code_font_url Code Font URL. Defaults to https://fonts.googleapis.com/css?family=Source+Code+Pro:400,700. Modifies the `@import url` elements.
 #' @param code_font_family_fallback Code Font Fallback. Defaults to 'Lucida Console', Monaco. Modifies the `.remark-code, .remark-inline-code` classes.
 #' @param colors A named vector of custom colors. The names of the colors
   link_color = base_color,
   text_bold_color = base_color,
   text_slide_number_color = base_color,
-  padding = "1rem 4rem 1rem 4rem",
+  padding = "16px 64px 16px 64px",
   background_image = NULL,
   background_size = NULL,
   background_position = NULL,
   code_highlight_color = "rgba(255,255,0,0.5)",
   code_inline_color = base_color,
   code_inline_background_color = NULL,
-  code_inline_font_size = "1em",
+  code_inline_font_size = "1rem",
   inverse_background_color = base_color,
   inverse_text_color = white_color,
   inverse_text_shadow = FALSE,
   title_slide_background_size = NULL,
   title_slide_background_position = NULL,
   footnote_color = NULL,
-  footnote_font_size = "0.9em",
-  footnote_position_bottom = "3em",
+  footnote_font_size = "0.9rem",
+  footnote_position_bottom = "60px",
   left_column_subtle_color = apply_alpha(base_color, 0.6),
   left_column_selected_color = base_color,
   blockquote_left_border_color = apply_alpha(base_color, 0.5),
   table_border_color = "#666",
   table_row_border_color = "#ddd",
   table_row_even_background_color = lighten_color(base_color, 0.8),
-  text_font_size = "20px",
-  header_h1_font_size = "55px",
-  header_h2_font_size = "45px",
-  header_h3_font_size = "35px",
+  base_font_size = "20px",
+  text_font_size = "1rem",
+  header_h1_font_size = "2.75rem",
+  header_h2_font_size = "2.25rem",
+  header_h3_font_size = "1.75rem",
   header_background_auto = FALSE,
   header_background_color = header_color,
   header_background_text_color = background_color,
   header_background_padding = "2rem 4rem 1.5rem 4rem",
   header_background_content_padding_top = "7rem",
   header_background_ignore_classes = c('normal', 'inverse', 'title', 'middle', 'bottom'),
-  text_slide_number_font_size = "0.9em",
+  text_slide_number_font_size = "0.9rem",
   text_font_google = NULL,
   text_font_family = "'Droid Serif'",
   text_font_weight = "normal",
   header_font_url = "https://fonts.googleapis.com/css?family=Yanone+Kaffeesatz",
   code_font_google = NULL,
   code_font_family = "'Source Code Pro'",
-  code_font_size = "0.9em",
+  code_font_size = "0.9rem",
   code_font_url = "https://fonts.googleapis.com/css?family=Source+Code+Pro:400,700",
   code_font_family_fallback = "'Lucida Console', Monaco",
   colors = NULL,

R/style_solarized_dark.R

 #' @param link_color Link Color. Defaults to #b58900. Modifies the `a, a > code` elements.
 #' @param text_bold_color Bold Text Color. Defaults to #d33682. Modifies the `strong` element.
 #' @param text_slide_number_color Slide Number Color. Defaults to #586e75. Modifies the `.remark-slide-number` class.
-#' @param padding Slide Padding in `top right [bottom left]` format. Defaults to 1rem 4rem 1rem 4rem. Modifies the `.remark-slide-content` class.
+#' @param padding Slide Padding in `top right [bottom left]` format. Defaults to 16px 64px 16px 64px. Modifies the `.remark-slide-content` class.
 #' @param background_image Background image applied to each *and every* slide. Set `title_slide_background_image = "none"` to remove the background image from the title slide. Defaults to `NULL`. Modifies the `.remark-slide-content` class.
 #' @param background_size Background image size, requires `background_image` to be set. If `background_image` is set, `background_size` will default to `cover` so the backround fills the screen. If both `background_image` and `background_position` are set, will default to 100 percent. Defaults to `NULL`. Modifies the `.remark-slide-content` class.
 #' @param background_position Background image position, requires `background_image` to be set, and it is recommended to adjust `background_size`. Defaults to `NULL`. Modifies the `.remark-slide-content` class.
 #' @param code_highlight_color Code Line Highlight. Defaults to #268bd240. Modifies the `.remark-code-line-highlighted` class.
 #' @param code_inline_color Inline Code Color. Defaults to #6c71c4. Modifies the `.remark-inline-code` class.
 #' @param code_inline_background_color Inline Code Background Color. Defaults to `NULL`. Modifies the `.remark-inline-code` class.
-#' @param code_inline_font_size Inline Code Text Font Size. Defaults to 1em. Modifies the `.remark-inline-code` class.
+#' @param code_inline_font_size Inline Code Text Font Size. Defaults to 1rem. Modifies the `.remark-inline-code` class.
 #' @param inverse_background_color Inverse Background Color. Defaults to #fdf6e3. Modifies the `.inverse` class.
 #' @param inverse_text_color Inverse Text Color. Defaults to #002b36. Modifies the `.inverse` class.
 #' @param inverse_text_shadow Enables Shadow on text of inverse slides. Defaults to `FALSE`. Modifies the `.inverse` class.
 #' @param title_slide_background_size Title Slide Background Image Size, defaults to "cover" if background image is set. Defaults to `NULL`. Modifies the `.title-slide` class.
 #' @param title_slide_background_position Title Slide Background Image Position. Defaults to `NULL`. Modifies the `.title-slide` class.
 #' @param footnote_color Footnote text color (if `NA`, then it will be the same color as `text_color`). Defaults to `NULL`. Modifies the `.footnote` class.
-#' @param footnote_font_size Footnote font size. Defaults to 0.9em. Modifies the `.footnote` class.
-#' @param footnote_position_bottom Footnote location from bottom of screen. Defaults to 3em. Modifies the `.footnote` class.
+#' @param footnote_font_size Footnote font size. Defaults to 0.9rem. Modifies the `.footnote` class.
+#' @param footnote_position_bottom Footnote location from bottom of screen. Defaults to 60px. Modifies the `.footnote` class.
 #' @param left_column_subtle_color Left Column Text (not last). Defaults to #586e75. Modifies the `.left-column h2, .left-column h3` classes.
 #' @param left_column_selected_color Left Column Current Selection. Defaults to #93a1a1. Modifies the `.left-column h2:last-of-type, .left-column h3:last-child` classes.
 #' @param blockquote_left_border_color Blockquote Left Border Color. Defaults to #cb4b16. Modifies the `blockquote` element.
 #' @param table_border_color Table top/bottom border. Defaults to #657b83. Modifies the `table: border-top, border-bottom` elements.
 #' @param table_row_border_color Table row inner bottom border. Defaults to #657b83. Modifies the `table thead th: border-bottom` elements.
 #' @param table_row_even_background_color Table Even Row Background Color. Defaults to #073642. Modifies the `thead, tfoot, tr:nth-child(even)` elements.
-#' @param text_font_size Slide Body Text Font Size. Defaults to 20px. Modifies the `.remark-slide-content` class.
-#' @param header_h1_font_size h1 Header Text Font Size. Defaults to 55px. Modifies the `.remark-slide-content h1` class.
-#' @param header_h2_font_size h2 Header Text Font Size. Defaults to 45px. Modifies the `.remark-slide-content h2` class.
-#' @param header_h3_font_size h3 Header Text Font Size. Defaults to 35px. Modifies the `.remark-slide-content h3` class.
+#' @param base_font_size Base Font Size for All Slide Elements (must be `px`). Defaults to 20px. Modifies the `html` element.
+#' @param text_font_size Slide Body Text Font Size. Defaults to 1rem. Modifies the `.remark-slide-content` class.
+#' @param header_h1_font_size h1 Header Text Font Size. Defaults to 2.75rem. Modifies the `.remark-slide-content h1` class.
+#' @param header_h2_font_size h2 Header Text Font Size. Defaults to 2.25rem. Modifies the `.remark-slide-content h2` class.
+#' @param header_h3_font_size h3 Header Text Font Size. Defaults to 1.75rem. Modifies the `.remark-slide-content h3` class.
 #' @param header_background_auto Add background under slide title automatically for h1 header elements. If not enabled, use `class: header_background` to enable. Defaults to `FALSE`. 
 #' @param header_background_color Background Color for h1 Header with Background. Defaults to `header_color`. Modifies the `.remark-slide-content h1` class.
 #' @param header_background_text_color Text Color for h1 Header with Background. Defaults to `background_color`. Modifies the `.remark-slide-content h1` class.
 #' @param header_background_padding Padding for h1 Header with Background. Defaults to 2rem 4rem 1.5rem 4rem. Modifies the `.remark-slide-content h1` class.
 #' @param header_background_content_padding_top Top Padding for Content in Slide with Header with Background. Defaults to 7rem. Modifies the `.remark-slide-content` class.
 #' @param header_background_ignore_classes Slide Classes Where Header with Background will not be Applied. Defaults to `c('normal', 'inverse', 'title', 'middle', 'bottom')`. Modifies the `.remark-slide-content` class.
-#' @param text_slide_number_font_size Slide Number Text Font Size. Defaults to 0.9em. Modifies the `.remark-slide-number` class.
+#' @param text_slide_number_font_size Slide Number Text Font Size. Defaults to 0.9rem. Modifies the `.remark-slide-number` class.
 #' @param text_font_google Use `google_font()` to specify body font. Defaults to `NULL`. Modifies the `body` element.
 #' @param text_font_family Body Text Font Family. Defaults to 'Droid Serif'. Modifies the `body` element.
 #' @param text_font_weight Body Text Font Weight. Defaults to normal. Modifies the `body` element.
 #' @param header_font_url Header Font URL. Defaults to https://fonts.googleapis.com/css?family=Yanone+Kaffeesatz. Modifies the `@import url` elements.
 #' @param code_font_google Use `google_font()` to specify code font. Defaults to `NULL`. Modifies the `body` element.
 #' @param code_font_family Code Font Family. Defaults to 'Source Code Pro'. Modifies the `.remark-code, .remark-inline-code` classes.
-#' @param code_font_size Code Text Font Size. Defaults to 0.9em. Modifies the `.remark-inline` class.
+#' @param code_font_size Code Text Font Size. Defaults to 0.9rem. Modifies the `.remark-inline` class.
 #' @param code_font_url Code Font URL. Defaults to https://fonts.googleapis.com/css?family=Source+Code+Pro:400,700. Modifies the `@import url` elements.
 #' @param code_font_family_fallback Code Font Fallback. Defaults to 'Lucida Console', Monaco. Modifies the `.remark-code, .remark-inline-code` classes.
 #' @param colors A named vector of custom colors. The names of the colors
   link_color = "#b58900",
   text_bold_color = "#d33682",
   text_slide_number_color = "#586e75",
-  padding = "1rem 4rem 1rem 4rem",
+  padding = "16px 64px 16px 64px",
   background_image = NULL,
   background_size = NULL,
   background_position = NULL,
   code_highlight_color = "#268bd240",
   code_inline_color = "#6c71c4",
   code_inline_background_color = NULL,
-  code_inline_font_size = "1em",
+  code_inline_font_size = "1rem",
   inverse_background_color = "#fdf6e3",
   inverse_text_color = "#002b36",
   inverse_text_shadow = FALSE,
   title_slide_background_size = NULL,
   title_slide_background_position = NULL,
   footnote_color = NULL,
-  footnote_font_size = "0.9em",
-  footnote_position_bottom = "3em",
+  footnote_font_size = "0.9rem",
+  footnote_position_bottom = "60px",
   left_column_subtle_color = "#586e75",
   left_column_selected_color = "#93a1a1",
   blockquote_left_border_color = "#cb4b16",
   table_border_color = "#657b83",
   table_row_border_color = "#657b83",
   table_row_even_background_color = "#073642",
-  text_font_size = "20px",
-  header_h1_font_size = "55px",
-  header_h2_font_size = "45px",
-  header_h3_font_size = "35px",
+  base_font_size = "20px",
+  text_font_size = "1rem",
+  header_h1_font_size = "2.75rem",
+  header_h2_font_size = "2.25rem",
+  header_h3_font_size = "1.75rem",
   header_background_auto = FALSE,
   header_background_color = header_color,
   header_background_text_color = background_color,
   header_background_padding = "2rem 4rem 1.5rem 4rem",
   header_background_content_padding_top = "7rem",
   header_background_ignore_classes = c('normal', 'inverse', 'title', 'middle', 'bottom'),
-  text_slide_number_font_size = "0.9em",
+  text_slide_number_font_size = "0.9rem",
   text_font_google = NULL,
   text_font_family = "'Droid Serif'",
   text_font_weight = "normal",
   header_font_url = "https://fonts.googleapis.com/css?family=Yanone+Kaffeesatz",
   code_font_google = NULL,
   code_font_family = "'Source Code Pro'",
-  code_font_size = "0.9em",
+  code_font_size = "0.9rem",
   code_font_url = "https://fonts.googleapis.com/css?family=Source+Code+Pro:400,700",
   code_font_family_fallback = "'Lucida Console', Monaco",
   colors = NULL,

R/style_solarized_light.R

 #' @param link_color Link Color. Defaults to #b58900. Modifies the `a, a > code` elements.
 #' @param text_bold_color Bold Text Color. Defaults to #d33682. Modifies the `strong` element.
 #' @param text_slide_number_color Slide Number Color. Defaults to #93a1a1. Modifies the `.remark-slide-number` class.
-#' @param padding Slide Padding in `top right [bottom left]` format. Defaults to 1rem 4rem 1rem 4rem. Modifies the `.remark-slide-content` class.
+#' @param padding Slide Padding in `top right [bottom left]` format. Defaults to 16px 64px 16px 64px. Modifies the `.remark-slide-content` class.
 #' @param background_image Background image applied to each *and every* slide. Set `title_slide_background_image = "none"` to remove the background image from the title slide. Defaults to `NULL`. Modifies the `.remark-slide-content` class.
 #' @param background_size Background image size, requires `background_image` to be set. If `background_image` is set, `background_size` will default to `cover` so the backround fills the screen. If both `background_image` and `background_position` are set, will default to 100 percent. Defaults to `NULL`. Modifies the `.remark-slide-content` class.
 #' @param background_position Background image position, requires `background_image` to be set, and it is recommended to adjust `background_size`. Defaults to `NULL`. Modifies the `.remark-slide-content` class.
 #' @param code_highlight_color Code Line Highlight. Defaults to #268bd240. Modifies the `.remark-code-line-highlighted` class.
 #' @param code_inline_color Inline Code Color. Defaults to #6c71c4. Modifies the `.remark-inline-code` class.
 #' @param code_inline_background_color Inline Code Background Color. Defaults to `NULL`. Modifies the `.remark-inline-code` class.
-#' @param code_inline_font_size Inline Code Text Font Size. Defaults to 1em. Modifies the `.remark-inline-code` class.
+#' @param code_inline_font_size Inline Code Text Font Size. Defaults to 1rem. Modifies the `.remark-inline-code` class.
 #' @param inverse_background_color Inverse Background Color. Defaults to #002b36. Modifies the `.inverse` class.
 #' @param inverse_text_color Inverse Text Color. Defaults to #fdf6e3. Modifies the `.inverse` class.
 #' @param inverse_text_shadow Enables Shadow on text of inverse slides. Defaults to `FALSE`. Modifies the `.inverse` class.
 #' @param title_slide_background_size Title Slide Background Image Size, defaults to "cover" if background image is set. Defaults to `NULL`. Modifies the `.title-slide` class.
 #' @param title_slide_background_position Title Slide Background Image Position. Defaults to `NULL`. Modifies the `.title-slide` class.
 #' @param footnote_color Footnote text color (if `NA`, then it will be the same color as `text_color`). Defaults to `NULL`. Modifies the `.footnote` class.
-#' @param footnote_font_size Footnote font size. Defaults to 0.9em. Modifies the `.footnote` class.
-#' @param footnote_position_bottom Footnote location from bottom of screen. Defaults to 3em. Modifies the `.footnote` class.
+#' @param footnote_font_size Footnote font size. Defaults to 0.9rem. Modifies the `.footnote` class.
+#' @param footnote_position_bottom Footnote location from bottom of screen. Defaults to 60px. Modifies the `.footnote` class.
 #' @param left_column_subtle_color Left Column Text (not last). Defaults to #93a1a1. Modifies the `.left-column h2, .left-column h3` classes.
 #' @param left_column_selected_color Left Column Current Selection. Defaults to #586e75. Modifies the `.left-column h2:last-of-type, .left-column h3:last-child` classes.
 #' @param blockquote_left_border_color Blockquote Left Border Color. Defaults to #cb4b16. Modifies the `blockquote` element.
 #' @param table_border_color Table top/bottom border. Defaults to #839496. Modifies the `table: border-top, border-bottom` elements.
 #' @param table_row_border_color Table row inner bottom border. Defaults to #839496. Modifies the `table thead th: border-bottom` elements.
 #' @param table_row_even_background_color Table Even Row Background Color. Defaults to #eee8d5. Modifies the `thead, tfoot, tr:nth-child(even)` elements.
-#' @param text_font_size Slide Body Text Font Size. Defaults to 20px. Modifies the `.remark-slide-content` class.
-#' @param header_h1_font_size h1 Header Text Font Size. Defaults to 55px. Modifies the `.remark-slide-content h1` class.
-#' @param header_h2_font_size h2 Header Text Font Size. Defaults to 45px. Modifies the `.remark-slide-content h2` class.
-#' @param header_h3_font_size h3 Header Text Font Size. Defaults to 35px. Modifies the `.remark-slide-content h3` class.
+#' @param base_font_size Base Font Size for All Slide Elements (must be `px`). Defaults to 20px. Modifies the `html` element.
+#' @param text_font_size Slide Body Text Font Size. Defaults to 1rem. Modifies the `.remark-slide-content` class.
+#' @param header_h1_font_size h1 Header Text Font Size. Defaults to 2.75rem. Modifies the `.remark-slide-content h1` class.
+#' @param header_h2_font_size h2 Header Text Font Size. Defaults to 2.25rem. Modifies the `.remark-slide-content h2` class.
+#' @param header_h3_font_size h3 Header Text Font Size. Defaults to 1.75rem. Modifies the `.remark-slide-content h3` class.
 #' @param header_background_auto Add background under slide title automatically for h1 header elements. If not enabled, use `class: header_background` to enable. Defaults to `FALSE`. 
 #' @param header_background_color Background Color for h1 Header with Background. Defaults to `header_color`. Modifies the `.remark-slide-content h1` class.
 #' @param header_background_text_color Text Color for h1 Header with Background. Defaults to `background_color`. Modifies the `.remark-slide-content h1` class.
 #' @param header_background_padding Padding for h1 Header with Background. Defaults to 2rem 4rem 1.5rem 4rem. Modifies the `.remark-slide-content h1` class.
 #' @param header_background_content_padding_top Top Padding for Content in Slide with Header with Background. Defaults to 7rem. Modifies the `.remark-slide-content` class.
 #' @param header_background_ignore_classes Slide Classes Where Header with Background will not be Applied. Defaults to `c('normal', 'inverse', 'title', 'middle', 'bottom')`. Modifies the `.remark-slide-content` class.
-#' @param text_slide_number_font_size Slide Number Text Font Size. Defaults to 0.9em. Modifies the `.remark-slide-number` class.
+#' @param text_slide_number_font_size Slide Number Text Font Size. Defaults to 0.9rem. Modifies the `.remark-slide-number` class.
 #' @param text_font_google Use `google_font()` to specify body font. Defaults to `NULL`. Modifies the `body` element.
 #' @param text_font_family Body Text Font Family. Defaults to 'Droid Serif'. Modifies the `body` element.
 #' @param text_font_weight Body Text Font Weight. Defaults to normal. Modifies the `body` element.
 #' @param header_font_url Header Font URL. Defaults to https://fonts.googleapis.com/css?family=Yanone+Kaffeesatz. Modifies the `@import url` elements.
 #' @param code_font_google Use `google_font()` to specify code font. Defaults to `NULL`. Modifies the `body` element.
 #' @param code_font_family Code Font Family. Defaults to 'Source Code Pro'. Modifies the `.remark-code, .remark-inline-code` classes.
-#' @param code_font_size Code Text Font Size. Defaults to 0.9em. Modifies the `.remark-inline` class.
+#' @param code_font_size Code Text Font Size. Defaults to 0.9rem. Modifies the `.remark-inline` class.
 #' @param code_font_url Code Font URL. Defaults to https://fonts.googleapis.com/css?family=Source+Code+Pro:400,700. Modifies the `@import url` elements.
 #' @param code_font_family_fallback Code Font Fallback. Defaults to 'Lucida Console', Monaco. Modifies the `.remark-code, .remark-inline-code` classes.
 #' @param colors A named vector of custom colors. The names of the colors
   link_color = "#b58900",
   text_bold_color = "#d33682",
   text_slide_number_color = "#93a1a1",
-  padding = "1rem 4rem 1rem 4rem",
+  padding = "16px 64px 16px 64px",
   background_image = NULL,
   background_size = NULL,
   background_position = NULL,
   code_highlight_color = "#268bd240",
   code_inline_color = "#6c71c4",
   code_inline_background_color = NULL,
-  code_inline_font_size = "1em",
+  code_inline_font_size = "1rem",
   inverse_background_color = "#002b36",
   inverse_text_color = "#fdf6e3",
   inverse_text_shadow = FALSE,
   title_slide_background_size = NULL,
   title_slide_background_position = NULL,
   footnote_color = NULL,
-  footnote_font_size = "0.9em",
-  footnote_position_bottom = "3em",
+  footnote_font_size = "0.9rem",
+  footnote_position_bottom = "60px",
   left_column_subtle_color = "#93a1a1",
   left_column_selected_color = "#586e75",
   blockquote_left_border_color = "#cb4b16",
   table_border_color = "#839496",
   table_row_border_color = "#839496",
   table_row_even_background_color = "#eee8d5",
-  text_font_size = "20px",
-  header_h1_font_size = "55px",
-  header_h2_font_size = "45px",
-  header_h3_font_size = "35px",
+  base_font_size = "20px",
+  text_font_size = "1rem",
+  header_h1_font_size = "2.75rem",
+  header_h2_font_size = "2.25rem",
+  header_h3_font_size = "1.75rem",
   header_background_auto = FALSE,
   header_background_color = header_color,
   header_background_text_color = background_color,
   header_background_padding = "2rem 4rem 1.5rem 4rem",
   header_background_content_padding_top = "7rem",
   header_background_ignore_classes = c('normal', 'inverse', 'title', 'middle', 'bottom'),
-  text_slide_number_font_size = "0.9em",
+  text_slide_number_font_size = "0.9rem",
   text_font_google = NULL,
   text_font_family = "'Droid Serif'",
   text_font_weight = "normal",
   header_font_url = "https://fonts.googleapis.com/css?family=Yanone+Kaffeesatz",
   code_font_google = NULL,
   code_font_family = "'Source Code Pro'",
-  code_font_size = "0.9em",
+  code_font_size = "0.9rem",
   code_font_url = "https://fonts.googleapis.com/css?family=Source+Code+Pro:400,700",
   code_font_family_fallback = "'Lucida Console', Monaco",
   colors = NULL,

R/style_xaringan.R

 #' @param link_color Link Color. Defaults to rgb(249, 38, 114). Modifies the `a, a > code` elements.
 #' @param text_bold_color Bold Text Color. Defaults to `NULL`. Modifies the `strong` element.
 #' @param text_slide_number_color Slide Number Color. Defaults to `inverse_background_color`. Modifies the `.remark-slide-number` class.
-#' @param padding Slide Padding in `top right [bottom left]` format. Defaults to 1rem 4rem 1rem 4rem. Modifies the `.remark-slide-content` class.
+#' @param padding Slide Padding in `top right [bottom left]` format. Defaults to 16px 64px 16px 64px. Modifies the `.remark-slide-content` class.
 #' @param background_image Background image applied to each *and every* slide. Set `title_slide_background_image = "none"` to remove the background image from the title slide. Defaults to `NULL`. Modifies the `.remark-slide-content` class.
 #' @param background_size Background image size, requires `background_image` to be set. If `background_image` is set, `background_size` will default to `cover` so the backround fills the screen. If both `background_image` and `background_position` are set, will default to 100 percent. Defaults to `NULL`. Modifies the `.remark-slide-content` class.
 #' @param background_position Background image position, requires `background_image` to be set, and it is recommended to adjust `background_size`. Defaults to `NULL`. Modifies the `.remark-slide-content` class.
 #' @param code_highlight_color Code Line Highlight. Defaults to rgba(255,255,0,0.5). Modifies the `.remark-code-line-highlighted` class.
 #' @param code_inline_color Inline Code Color. Defaults to #000. Modifies the `.remark-inline-code` class.
 #' @param code_inline_background_color Inline Code Background Color. Defaults to `NULL`. Modifies the `.remark-inline-code` class.
-#' @param code_inline_font_size Inline Code Text Font Size. Defaults to 1em. Modifies the `.remark-inline-code` class.
+#' @param code_inline_font_size Inline Code Text Font Size. Defaults to 1rem. Modifies the `.remark-inline-code` class.
 #' @param inverse_background_color Inverse Background Color. Defaults to #272822. Modifies the `.inverse` class.
 #' @param inverse_text_color Inverse Text Color. Defaults to #d6d6d6. Modifies the `.inverse` class.
 #' @param inverse_text_shadow Enables Shadow on text of inverse slides. Defaults to `FALSE`. Modifies the `.inverse` class.
 #' @param title_slide_background_size Title Slide Background Image Size, defaults to "cover" if background image is set. Defaults to `NULL`. Modifies the `.title-slide` class.
 #' @param title_slide_background_position Title Slide Background Image Position. Defaults to `NULL`. Modifies the `.title-slide` class.
 #' @param footnote_color Footnote text color (if `NA`, then it will be the same color as `text_color`). Defaults to `NULL`. Modifies the `.footnote` class.
-#' @param footnote_font_size Footnote font size. Defaults to 0.9em. Modifies the `.footnote` class.
-#' @param footnote_position_bottom Footnote location from bottom of screen. Defaults to 3em. Modifies the `.footnote` class.
+#' @param footnote_font_size Footnote font size. Defaults to 0.9rem. Modifies the `.footnote` class.
+#' @param footnote_position_bottom Footnote location from bottom of screen. Defaults to 60px. Modifies the `.footnote` class.
 #' @param left_column_subtle_color Left Column Text (not last). Defaults to #777. Modifies the `.left-column h2, .left-column h3` classes.
 #' @param left_column_selected_color Left Column Current Selection. Defaults to #000. Modifies the `.left-column h2:last-of-type, .left-column h3:last-child` classes.
 #' @param blockquote_left_border_color Blockquote Left Border Color. Defaults to lightgray. Modifies the `blockquote` element.
 #' @param table_border_color Table top/bottom border. Defaults to #666. Modifies the `table: border-top, border-bottom` elements.
 #' @param table_row_border_color Table row inner bottom border. Defaults to #ddd. Modifies the `table thead th: border-bottom` elements.
 #' @param table_row_even_background_color Table Even Row Background Color. Defaults to #eee. Modifies the `thead, tfoot, tr:nth-child(even)` elements.
-#' @param text_font_size Slide Body Text Font Size. Defaults to 20px. Modifies the `.remark-slide-content` class.
-#' @param header_h1_font_size h1 Header Text Font Size. Defaults to 55px. Modifies the `.remark-slide-content h1` class.
-#' @param header_h2_font_size h2 Header Text Font Size. Defaults to 45px. Modifies the `.remark-slide-content h2` class.
-#' @param header_h3_font_size h3 Header Text Font Size. Defaults to 35px. Modifies the `.remark-slide-content h3` class.
+#' @param base_font_size Base Font Size for All Slide Elements (must be `px`). Defaults to 20px. Modifies the `html` element.
+#' @param text_font_size Slide Body Text Font Size. Defaults to 1rem. Modifies the `.remark-slide-content` class.
+#' @param header_h1_font_size h1 Header Text Font Size. Defaults to 2.75rem. Modifies the `.remark-slide-content h1` class.
+#' @param header_h2_font_size h2 Header Text Font Size. Defaults to 2.25rem. Modifies the `.remark-slide-content h2` class.
+#' @param header_h3_font_size h3 Header Text Font Size. Defaults to 1.75rem. Modifies the `.remark-slide-content h3` class.
 #' @param header_background_auto Add background under slide title automatically for h1 header elements. If not enabled, use `class: header_background` to enable. Defaults to `FALSE`. 
 #' @param header_background_color Background Color for h1 Header with Background. Defaults to `header_color`. Modifies the `.remark-slide-content h1` class.
 #' @param header_background_text_color Text Color for h1 Header with Background. Defaults to `background_color`. Modifies the `.remark-slide-content h1` class.
 #' @param header_background_padding Padding for h1 Header with Background. Defaults to 2rem 4rem 1.5rem 4rem. Modifies the `.remark-slide-content h1` class.
 #' @param header_background_content_padding_top Top Padding for Content in Slide with Header with Background. Defaults to 7rem. Modifies the `.remark-slide-content` class.
 #' @param header_background_ignore_classes Slide Classes Where Header with Background will not be Applied. Defaults to `c('normal', 'inverse', 'title', 'middle', 'bottom')`. Modifies the `.remark-slide-content` class.
-#' @param text_slide_number_font_size Slide Number Text Font Size. Defaults to 0.9em. Modifies the `.remark-slide-number` class.
+#' @param text_slide_number_font_size Slide Number Text Font Size. Defaults to 0.9rem. Modifies the `.remark-slide-number` class.
 #' @param text_font_google Use `google_font()` to specify body font. Defaults to `NULL`. Modifies the `body` element.
 #' @param text_font_family Body Text Font Family. Defaults to 'Droid Serif'. Modifies the `body` element.
 #' @param text_font_weight Body Text Font Weight. Defaults to normal. Modifies the `body` element.
 #' @param header_font_url Header Font URL. Defaults to https://fonts.googleapis.com/css?family=Yanone+Kaffeesatz. Modifies the `@import url` elements.
 #' @param code_font_google Use `google_font()` to specify code font. Defaults to `NULL`. Modifies the `body` element.
 #' @param code_font_family Code Font Family. Defaults to 'Source Code Pro'. Modifies the `.remark-code, .remark-inline-code` classes.
-#' @param code_font_size Code Text Font Size. Defaults to 0.9em. Modifies the `.remark-inline` class.
+#' @param code_font_size Code Text Font Size. Defaults to 0.9rem. Modifies the `.remark-inline` class.
 #' @param code_font_url Code Font URL. Defaults to https://fonts.googleapis.com/css?family=Source+Code+Pro:400,700. Modifies the `@import url` elements.
 #' @param code_font_family_fallback Code Font Fallback. Defaults to 'Lucida Console', Monaco. Modifies the `.remark-code, .remark-inline-code` classes.
 #' @param colors A named vector of custom colors. The names of the colors
   link_color = "rgb(249, 38, 114)",
   text_bold_color = NULL,
   text_slide_number_color = inverse_background_color,
-  padding = "1rem 4rem 1rem 4rem",
+  padding = "16px 64px 16px 64px",
   background_image = NULL,
   background_size = NULL,
   background_position = NULL,
   code_highlight_color = "rgba(255,255,0,0.5)",
   code_inline_color = "#000",
   code_inline_background_color = NULL,
-  code_inline_font_size = "1em",
+  code_inline_font_size = "1rem",
   inverse_background_color = "#272822",
   inverse_text_color = "#d6d6d6",
   inverse_text_shadow = FALSE,
   title_slide_background_size = NULL,
   title_slide_background_position = NULL,
   footnote_color = NULL,
-  footnote_font_size = "0.9em",
-  footnote_position_bottom = "3em",
+  footnote_font_size = "0.9rem",
+  footnote_position_bottom = "60px",
   left_column_subtle_color = "#777",
   left_column_selected_color = "#000",
   blockquote_left_border_color = "lightgray",
   table_border_color = "#666",
   table_row_border_color = "#ddd",
   table_row_even_background_color = "#eee",
-  text_font_size = "20px",
-  header_h1_font_size = "55px",
-  header_h2_font_size = "45px",
-  header_h3_font_size = "35px",
+  base_font_size = "20px",
+  text_font_size = "1rem",
+  header_h1_font_size = "2.75rem",
+  header_h2_font_size = "2.25rem",
+  header_h3_font_size = "1.75rem",
   header_background_auto = FALSE,
   header_background_color = header_color,
   header_background_text_color = background_color,
   header_background_padding = "2rem 4rem 1.5rem 4rem",
   header_background_content_padding_top = "7rem",
   header_background_ignore_classes = c('normal', 'inverse', 'title', 'middle', 'bottom'),
-  text_slide_number_font_size = "0.9em",
+  text_slide_number_font_size = "0.9rem",
   text_font_google = NULL,
   text_font_family = "'Droid Serif'",
   text_font_weight = "normal",
   header_font_url = "https://fonts.googleapis.com/css?family=Yanone+Kaffeesatz",
   code_font_google = NULL,
   code_font_family = "'Source Code Pro'",
-  code_font_size = "0.9em",
+  code_font_size = "0.9rem",
   code_font_url = "https://fonts.googleapis.com/css?family=Source+Code+Pro:400,700",
   code_font_family_fallback = "'Lucida Console', Monaco",
   colors = NULL,
     eval(parse(text = paste0(sub("font_family$", "font_is_google", var), "<-0")))
   }
   
+  # Warn if base_font_size isn't absolute
+  css_abs_units <- c("cm", "mm", "Q", "in", "pc", "pt", "px")
+  if (!grepl(paste(tolower(css_abs_units), collapse = "|"), tolower(base_font_size))) {
+    warning(
+      glue::glue(
+        "Base font size '{base_font_size}' is not in absolute units. ",
+        "For best results, specify the `base_font_size` using absolute CSS units: ",
+        "{paste(css_abs_units, collapse = ', ')}"
+      ),
+      call. = FALSE,
+      immediate. = TRUE
+    )
+  }
+  
   # Use font_..._google args to overwrite font args
   for (var in f_args[grepl("font_google$", f_args)]) {
     gf <- eval(parse(text = var))

R/theme_settings.R

   , "link_color", "rgb(249, 38, 114)", "a, a > code", "Link Color"
   , "text_bold_color", NULL, "strong", "Bold Text Color"
   , "text_slide_number_color", "{inverse_background_color}", ".remark-slide-number", "Slide Number Color"
-  , "padding", "1rem 4rem 1rem 4rem", ".remark-slide-content", "Slide Padding in `top right [bottom left]` format"
+  , "padding", "16px 64px 16px 64px", ".remark-slide-content", "Slide Padding in `top right [bottom left]` format"
   , "background_image", NULL, ".remark-slide-content", "Background image applied to each *and every* slide. Set `title_slide_background_image = \"none\"` to remove the background image from the title slide"
   , "background_size", NULL, ".remark-slide-content", "Background image size, requires `background_image` to be set. If `background_image` is set, `background_size` will default to `cover` so the backround fills the screen. If both `background_image` and `background_position` are set, will default to 100 percent"
   , "background_position", NULL, ".remark-slide-content", "Background image position, requires `background_image` to be set, and it is recommended to adjust `background_size`"
   , "code_highlight_color", "rgba(255,255,0,0.5)", ".remark-code-line-highlighted", "Code Line Highlight"
   , "code_inline_color", "#000", ".remark-inline-code", "Inline Code Color"
   , "code_inline_background_color", NULL, ".remark-inline-code", "Inline Code Background Color"
-  , "code_inline_font_size", "1em", ".remark-inline-code", "Inline Code Text Font Size"
+  , "code_inline_font_size", "1rem", ".remark-inline-code", "Inline Code Text Font Size"
   , "inverse_background_color", "#272822", ".inverse", "Inverse Background Color"
   , "inverse_text_color", "#d6d6d6", ".inverse", "Inverse Text Color"
   , "inverse_text_shadow", "{FALSE}", ".inverse", "Enables Shadow on text of inverse slides"
   , "title_slide_background_size", NULL, ".title-slide", "Title Slide Background Image Size, defaults to \"cover\" if background image is set"
   , "title_slide_background_position", NULL, ".title-slide", "Title Slide Background Image Position"
   , "footnote_color", NULL, ".footnote", "Footnote text color (if `NA`, then it will be the same color as `text_color`)"
-  , "footnote_font_size", "0.9em", ".footnote", "Footnote font size"
-  , "footnote_position_bottom", "3em", ".footnote", "Footnote location from bottom of screen"
+  , "footnote_font_size", "0.9rem", ".footnote", "Footnote font size"
+  , "footnote_position_bottom", "60px", ".footnote", "Footnote location from bottom of screen"
   , "left_column_subtle_color", "#777", ".left-column h2, .left-column h3", "Left Column Text (not last)"
   , "left_column_selected_color", "#000", ".left-column h2:last-of-type, .left-column h3:last-child", "Left Column Current Selection"
   , "blockquote_left_border_color", "lightgray", "blockquote", "Blockquote Left Border Color"
   , "table_border_color", "#666", "table: border-top, border-bottom", "Table top/bottom border"
   , "table_row_border_color", "#ddd", "table thead th: border-bottom", "Table row inner bottom border"
   , "table_row_even_background_color", "#eee", "thead, tfoot, tr:nth-child(even)", "Table Even Row Background Color"
-  , "text_font_size", "20px", ".remark-slide-content", "Slide Body Text Font Size"
-  , "header_h1_font_size", "55px", ".remark-slide-content h1", "h1 Header Text Font Size"
-  , "header_h2_font_size", "45px", ".remark-slide-content h2", "h2 Header Text Font Size"
-  , "header_h3_font_size", "35px", ".remark-slide-content h3", "h3 Header Text Font Size"
+  , "base_font_size", "20px", "html", "Base Font Size for All Slide Elements (must be `px`)"
+  , "text_font_size", "1rem", ".remark-slide-content", "Slide Body Text Font Size"
+  , "header_h1_font_size", "2.75rem", ".remark-slide-content h1", "h1 Header Text Font Size"
+  , "header_h2_font_size", "2.25rem", ".remark-slide-content h2", "h2 Header Text Font Size"
+  , "header_h3_font_size", "1.75rem", ".remark-slide-content h3", "h3 Header Text Font Size"
   , "header_background_auto", "{FALSE}", "", "Add background under slide title automatically for h1 header elements. If not enabled, use `class: header_background` to enable"
   , "header_background_color", "{header_color}", ".remark-slide-content h1", "Background Color for h1 Header with Background"
   , "header_background_text_color", "{background_color}", ".remark-slide-content h1", "Text Color for h1 Header with Background"
   , "header_background_padding", "2rem 4rem 1.5rem 4rem", ".remark-slide-content h1", "Padding for h1 Header with Background"
   , "header_background_content_padding_top", "7rem", ".remark-slide-content", "Top Padding for Content in Slide with Header with Background"
   , "header_background_ignore_classes", "{c('normal', 'inverse', 'title', 'middle', 'bottom')}", ".remark-slide-content", "Slide Classes Where Header with Background will not be Applied"
-  , "text_slide_number_font_size", "0.9em", ".remark-slide-number", "Slide Number Text Font Size"
+  , "text_slide_number_font_size", "0.9rem", ".remark-slide-number", "Slide Number Text Font Size"
   , "text_font_google", NULL, "body", "Use `google_font()` to specify body font"
   , "text_font_family", "'Droid Serif'", "body", "Body Text Font Family"
   , "text_font_weight", "normal", "body", "Body Text Font Weight"
   , "header_font_url", "https://fonts.googleapis.com/css?family=Yanone+Kaffeesatz", "@import url", "Header Font URL"
   , "code_font_google", NULL, "body", "Use `google_font()` to specify code font"
   , "code_font_family", "'Source Code Pro'", ".remark-code, .remark-inline-code", "Code Font Family"
-  , "code_font_size", "0.9em", ".remark-inline", "Code Text Font Size"
+  , "code_font_size", "0.9rem", ".remark-inline", "Code Text Font Size"
   , "code_font_url", "https://fonts.googleapis.com/css?family=Source+Code+Pro:400,700", "@import url", "Code Font URL"
   , "code_font_family_fallback", "'Lucida Console', Monaco", ".remark-code, .remark-inline-code", "Code Font Fallback"
 )

inst/resources/template.css

   --header-font-is-google: {{header_font_is_google}};
   --code-font-family: {{code_font_family}};
   --code-font-is-google: {{code_font_is_google}};
+  --base-font-size: {{base_font_size}};
   --text-font-size: {{text_font_size}};
   --code-font-size: {{code_font_size}};
   --code-inline-font-size: {{code_inline_font_size}};
 }
 
 html {
-  font-size: var(--text-font-size);
+  font-size: var(--base-font-size);
 }
 
 body {
 }
 .remark-slide-content {
   background-color: var(--background-color);
-  font-size: var(--text-font-size);{{#background_image}}
+  font-size: {{text_font_size}};{{#background_image}}
   background-image: url({{background_image}});{{#background_size}}
   background-size: {{background_size}};{{/background_size}}{{#background_position}}
   background-position: {{background_position}};{{/background_position}}{{/background_image}}

inst/scripts/style_xaringan_body.R

   eval(parse(text = paste0(sub("font_family$", "font_is_google", var), "<-0")))
 }
 
+# Warn if base_font_size isn't absolute
+css_abs_units <- c("cm", "mm", "Q", "in", "pc", "pt", "px")
+if (!grepl(paste(tolower(css_abs_units), collapse = "|"), tolower(base_font_size))) {
+  warning(
+    glue::glue(
+      "Base font size '{base_font_size}' is not in absolute units. ",
+      "For best results, specify the `base_font_size` using absolute CSS units: ",
+      "{paste(css_abs_units, collapse = ', ')}"
+    ),
+    call. = FALSE,
+    immediate. = TRUE
+  )
+}
+
 # Use font_..._google args to overwrite font args
 for (var in f_args[grepl("font_google$", f_args)]) {
   gf <- eval(parse(text = var))

man/style_duo.Rd

   link_color = secondary_color,
   text_bold_color = secondary_color,
   text_slide_number_color = text_color,
-  padding = "1rem 4rem 1rem 4rem",
+  padding = "16px 64px 16px 64px",
   background_image = NULL,
   background_size = NULL,
   background_position = NULL,
   code_highlight_color = "rgba(255,255,0,0.5)",
   code_inline_color = secondary_color,
   code_inline_background_color = NULL,
-  code_inline_font_size = "1em",
+  code_inline_font_size = "1rem",
   inverse_background_color = secondary_color,
   inverse_text_color = primary_color,
   inverse_text_shadow = FALSE,
   title_slide_background_size = NULL,
   title_slide_background_position = NULL,
   footnote_color = NULL,
-  footnote_font_size = "0.9em",
-  footnote_position_bottom = "3em",
+  footnote_font_size = "0.9rem",
+  footnote_position_bottom = "60px",
   left_column_subtle_color = apply_alpha(secondary_color, 0.6),
   left_column_selected_color = secondary_color,
   blockquote_left_border_color = apply_alpha(secondary_color, 0.5),
   table_border_color = "#666",
   table_row_border_color = "#ddd",
   table_row_even_background_color = lighten_color(primary_color, 0.3),
-  text_font_size = "20px",
-  header_h1_font_size = "55px",
-  header_h2_font_size = "45px",
-  header_h3_font_size = "35px",
+  base_font_size = "20px",
+  text_font_size = "1rem",
+  header_h1_font_size = "2.75rem",
+  header_h2_font_size = "2.25rem",
+  header_h3_font_size = "1.75rem",
   header_background_auto = FALSE,
   header_background_color = header_color,
   header_background_text_color = background_color,
   header_background_padding = "2rem 4rem 1.5rem 4rem",
   header_background_content_padding_top = "7rem",
   header_background_ignore_classes = c("normal", "inverse", "title", "middle", "bottom"),
-  text_slide_number_font_size = "0.9em",
+  text_slide_number_font_size = "0.9rem",
   text_font_google = NULL,
   text_font_family = "'Droid Serif'",
   text_font_weight = "normal",
   header_font_url = "https://fonts.googleapis.com/css?family=Yanone+Kaffeesatz",
   code_font_google = NULL,
   code_font_family = "'Source Code Pro'",
-  code_font_size = "0.9em",
+  code_font_size = "0.9rem",
   code_font_url = "https://fonts.googleapis.com/css?family=Source+Code+Pro:400,700",
   code_font_family_fallback = "'Lucida Console', Monaco",
   colors = NULL,
 
 \item{text_slide_number_color}{Slide Number Color. Defaults to \code{text_color}. Modifies the \code{.remark-slide-number} class.}
 
-\item{padding}{Slide Padding in \verb{top right [bottom left]} format. Defaults to 1rem 4rem 1rem 4rem. Modifies the \code{.remark-slide-content} class.}
+\item{padding}{Slide Padding in \verb{top right [bottom left]} format. Defaults to 16px 64px 16px 64px. Modifies the \code{.remark-slide-content} class.}
 
 \item{background_image}{Background image applied to each \emph{and every} slide. Set \code{title_slide_background_image = "none"} to remove the background image from the title slide. Defaults to \code{NULL}. Modifies the \code{.remark-slide-content} class.}
 
 
 \item{code_inline_background_color}{Inline Code Background Color. Defaults to \code{NULL}. Modifies the \code{.remark-inline-code} class.}
 
-\item{code_inline_font_size}{Inline Code Text Font Size. Defaults to 1em. Modifies the \code{.remark-inline-code} class.}
+\item{code_inline_font_size}{Inline Code Text Font Size. Defaults to 1rem. Modifies the \code{.remark-inline-code} class.}
 
 \item{inverse_background_color}{Inverse Background Color. Defaults to \code{secondary_color}. Modifies the \code{.inverse} class.}
 
 
 \item{footnote_color}{Footnote text color (if \code{NA}, then it will be the same color as \code{text_color}). Defaults to \code{NULL}. Modifies the \code{.footnote} class.}
 
-\item{footnote_font_size}{Footnote font size. Defaults to 0.9em. Modifies the \code{.footnote} class.}
+\item{footnote_font_size}{Footnote font size. Defaults to 0.9rem. Modifies the \code{.footnote} class.}
 
-\item{footnote_position_bottom}{Footnote location from bottom of screen. Defaults to 3em. Modifies the \code{.footnote} class.}
+\item{footnote_position_bottom}{Footnote location from bottom of screen. Defaults to 60px. Modifies the \code{.footnote} class.}
 
 \item{left_column_subtle_color}{Left Column Text (not last). Defaults to \code{apply_alpha(secondary_color, 0.6)}. Modifies the \verb{.left-column h2, .left-column h3} classes.}
 
 
 \item{table_row_even_background_color}{Table Even Row Background Color. Defaults to \code{lighten_color(primary_color, 0.3)}. Modifies the \verb{thead, tfoot, tr:nth-child(even)} elements.}
 
-\item{text_font_size}{Slide Body Text Font Size. Defaults to 20px. Modifies the \code{.remark-slide-content} class.}
+\item{base_font_size}{Base Font Size for All Slide Elements (must be \code{px}). Defaults to 20px. Modifies the \code{html} element.}
 
-\item{header_h1_font_size}{h1 Header Text Font Size. Defaults to 55px. Modifies the \verb{.remark-slide-content h1} class.}
+\item{text_font_size}{Slide Body Text Font Size. Defaults to 1rem. Modifies the \code{.remark-slide-content} class.}
 
-\item{header_h2_font_size}{h2 Header Text Font Size. Defaults to 45px. Modifies the \verb{.remark-slide-content h2} class.}
+\item{header_h1_font_size}{h1 Header Text Font Size. Defaults to 2.75rem. Modifies the \verb{.remark-slide-content h1} class.}
 
-\item{header_h3_font_size}{h3 Header Text Font Size. Defaults to 35px. Modifies the \verb{.remark-slide-content h3} class.}
+\item{header_h2_font_size}{h2 Header Text Font Size. Defaults to 2.25rem. Modifies the \verb{.remark-slide-content h2} class.}
+
+\item{header_h3_font_size}{h3 Header Text Font Size. Defaults to 1.75rem. Modifies the \verb{.remark-slide-content h3} class.}
 
 \item{header_background_auto}{Add background under slide title automatically for h1 header elements. If not enabled, use \code{class: header_background} to enable. Defaults to \code{FALSE}.}
 
 
 \item{header_background_ignore_classes}{Slide Classes Where Header with Background will not be Applied. Defaults to \code{c('normal', 'inverse', 'title', 'middle', 'bottom')}. Modifies the \code{.remark-slide-content} class.}
 
-\item{text_slide_number_font_size}{Slide Number Text Font Size. Defaults to 0.9em. Modifies the \code{.remark-slide-number} class.}
+\item{text_slide_number_font_size}{Slide Number Text Font Size. Defaults to 0.9rem. Modifies the \code{.remark-slide-number} class.}
 
 \item{text_font_google}{Use \code{google_font()} to specify body font. Defaults to \code{NULL}. Modifies the \code{body} element.}
 
 
 \item{code_font_family}{Code Font Family. Defaults to 'Source Code Pro'. Modifies the \verb{.remark-code, .remark-inline-code} classes.}
 
-\item{code_font_size}{Code Text Font Size. Defaults to 0.9em. Modifies the \code{.remark-inline} class.}
+\item{code_font_size}{Code Text Font Size. Defaults to 0.9rem. Modifies the \code{.remark-inline} class.}
 
 \item{code_font_url}{Code Font URL. Defaults to https://fonts.googleapis.com/css?family=Source+Code+Pro:400,700. Modifies the \verb{@import url} elements.}
 

man/style_duo_accent.Rd

   text_bold_color = choose_dark_or_light(secondary_color, primary_color,
     secondary_color),
   text_slide_number_color = primary_color,
-  padding = "1rem 4rem 1rem 4rem",
+  padding = "16px 64px 16px 64px",
   background_image = NULL,
   background_size = NULL,
   background_position = NULL,
   code_inline_color = choose_dark_or_light(secondary_color, primary_color,
     secondary_color),
   code_inline_background_color = NULL,
-  code_inline_font_size = "1em",
+  code_inline_font_size = "1rem",
   inverse_background_color = secondary_color,
   inverse_text_color = choose_dark_or_light(secondary_color, black_color, white_color),
   inverse_text_shadow = FALSE,
   title_slide_background_size = NULL,
   title_slide_background_position = NULL,
   footnote_color = NULL,
-  footnote_font_size = "0.9em",
-  footnote_position_bottom = "3em",
+  footnote_font_size = "0.9rem",
+  footnote_position_bottom = "60px",
   left_column_subtle_color = apply_alpha(primary_color, 0.6),
   left_column_selected_color = primary_color,
   blockquote_left_border_color = apply_alpha(secondary_color, 0.5),
   table_border_color = "#666",
   table_row_border_color = "#ddd",
   table_row_even_background_color = lighten_color(secondary_color, 0.3),
-  text_font_size = "20px",
-  header_h1_font_size = "55px",
-  header_h2_font_size = "45px",
-  header_h3_font_size = "35px",
+  base_font_size = "20px",
+  text_font_size = "1rem",
+  header_h1_font_size = "2.75rem",
+  header_h2_font_size = "2.25rem",
+  header_h3_font_size = "1.75rem",
   header_background_auto = FALSE,
   header_background_color = header_color,
   header_background_text_color = background_color,
   header_background_padding = "2rem 4rem 1.5rem 4rem",
   header_background_content_padding_top = "7rem",
   header_background_ignore_classes = c("normal", "inverse", "title", "middle", "bottom"),
-  text_slide_number_font_size = "0.9em",
+  text_slide_number_font_size = "0.9rem",
   text_font_google = NULL,
   text_font_family = "'Droid Serif'",
   text_font_weight = "normal",
   header_font_url = "https://fonts.googleapis.com/css?family=Yanone+Kaffeesatz",
   code_font_google = NULL,
   code_font_family = "'Source Code Pro'",
-  code_font_size = "0.9em",
+  code_font_size = "0.9rem",
   code_font_url = "https://fonts.googleapis.com/css?family=Source+Code+Pro:400,700",
   code_font_family_fallback = "'Lucida Console', Monaco",
   colors = NULL,
 
 \item{text_slide_number_color}{Slide Number Color. Defaults to \code{primary_color}. Modifies the \code{.remark-slide-number} class.}
 
-\item{padding}{Slide Padding in \verb{top right [bottom left]} format. Defaults to 1rem 4rem 1rem 4rem. Modifies the \code{.remark-slide-content} class.}
+\item{padding}{Slide Padding in \verb{top right [bottom left]} format. Defaults to 16px 64px 16px 64px. Modifies the \code{.remark-slide-content} class.}
 
 \item{background_image}{Background image applied to each \emph{and every} slide. Set \code{title_slide_background_image = "none"} to remove the background image from the title slide. Defaults to \code{NULL}. Modifies the \code{.remark-slide-content} class.}
 
 
 \item{code_inline_background_color}{Inline Code Background Color. Defaults to \code{NULL}. Modifies the \code{.remark-inline-code} class.}
 
-\item{code_inline_font_size}{Inline Code Text Font Size. Defaults to 1em. Modifies the \code{.remark-inline-code} class.}
+\item{code_inline_font_size}{Inline Code Text Font Size. Defaults to 1rem. Modifies the \code{.remark-inline-code} class.}
 
 \item{inverse_background_color}{Inverse Background Color. Defaults to \code{secondary_color}. Modifies the \code{.inverse} class.}
 
 
 \item{footnote_color}{Footnote text color (if \code{NA}, then it will be the same color as \code{text_color}). Defaults to \code{NULL}. Modifies the \code{.footnote} class.}
 
-\item{footnote_font_size}{Footnote font size. Defaults to 0.9em. Modifies the \code{.footnote} class.}
+\item{footnote_font_size}{Footnote font size. Defaults to 0.9rem. Modifies the \code{.footnote} class.}
 
-\item{footnote_position_bottom}{Footnote location from bottom of screen. Defaults to 3em. Modifies the \code{.footnote} class.}
+\item{footnote_position_bottom}{Footnote location from bottom of screen. Defaults to 60px. Modifies the \code{.footnote} class.}
 
 \item{left_column_subtle_color}{Left Column Text (not last). Defaults to \code{apply_alpha(primary_color, 0.6)}. Modifies the \verb{.left-column h2, .left-column h3} classes.}
 
 
 \item{table_row_even_background_color}{Table Even Row Background Color. Defaults to \code{lighten_color(secondary_color, 0.3)}. Modifies the \verb{thead, tfoot, tr:nth-child(even)} elements.}
 
-\item{text_font_size}{Slide Body Text Font Size. Defaults to 20px. Modifies the \code{.remark-slide-content} class.}
+\item{base_font_size}{Base Font Size for All Slide Elements (must be \code{px}). Defaults to 20px. Modifies the \code{html} element.}
 
-\item{header_h1_font_size}{h1 Header Text Font Size. Defaults to 55px. Modifies the \verb{.remark-slide-content h1} class.}
+\item{text_font_size}{Slide Body Text Font Size. Defaults to 1rem. Modifies the \code{.remark-slide-content} class.}
 
-\item{header_h2_font_size}{h2 Header Text Font Size. Defaults to 45px. Modifies the \verb{.remark-slide-content h2} class.}
+\item{header_h1_font_size}{h1 Header Text Font Size. Defaults to 2.75rem. Modifies the \verb{.remark-slide-content h1} class.}
 
-\item{header_h3_font_size}{h3 Header Text Font Size. Defaults to 35px. Modifies the \verb{.remark-slide-content h3} class.}
+\item{header_h2_font_size}{h2 Header Text Font Size. Defaults to 2.25rem. Modifies the \verb{.remark-slide-content h2} class.}
+
+\item{header_h3_font_size}{h3 Header Text Font Size. Defaults to 1.75rem. Modifies the \verb{.remark-slide-content h3} class.}
 
 \item{header_background_auto}{Add background under slide title automatically for h1 header elements. If not enabled, use \code{class: header_background} to enable. Defaults to \code{FALSE}.}
 
 
 \item{header_background_ignore_classes}{Slide Classes Where Header with Background will not be Applied. Defaults to \code{c('normal', 'inverse', 'title', 'middle', 'bottom')}. Modifies the \code{.remark-slide-content} class.}
 
-\item{text_slide_number_font_size}{Slide Number Text Font Size. Defaults to 0.9em. Modifies the \code{.remark-slide-number} class.}
+\item{text_slide_number_font_size}{Slide Number Text Font Size. Defaults to 0.9rem. Modifies the \code{.remark-slide-number} class.}
 
 \item{text_font_google}{Use \code{google_font()} to specify body font. Defaults to \code{NULL}. Modifies the \code{body} element.}
 
 
 \item{code_font_family}{Code Font Family. Defaults to 'Source Code Pro'. Modifies the \verb{.remark-code, .remark-inline-code} classes.}
 
-\item{code_font_size}{Code Text Font Size. Defaults to 0.9em. Modifies the \code{.remark-inline} class.}
+\item{code_font_size}{Code Text Font Size. Defaults to 0.9rem. Modifies the \code{.remark-inline} class.}
 
 \item{code_font_url}{Code Font URL. Defaults to https://fonts.googleapis.com/css?family=Source+Code+Pro:400,700. Modifies the \verb{@import url} elements.}
 

man/style_duo_accent_inverse.Rd

   text_bold_color = choose_dark_or_light(secondary_color, secondary_color,
     primary_color),
   text_slide_number_color = primary_color,
-  padding = "1rem 4rem 1rem 4rem",
+  padding = "16px 64px 16px 64px",
   background_image = NULL,
   background_size = NULL,
   background_position = NULL,
   code_inline_color = choose_dark_or_light(secondary_color, secondary_color,
     primary_color),
   code_inline_background_color = NULL,
-  code_inline_font_size = "1em",
+  code_inline_font_size = "1rem",
   inverse_background_color = secondary_color,
   inverse_text_color = choose_dark_or_light(secondary_color, black_color, white_color),
   inverse_text_shadow = FALSE,
   title_slide_background_size = NULL,
   title_slide_background_position = NULL,
   footnote_color = NULL,
-  footnote_font_size = "0.9em",
-  footnote_position_bottom = "3em",
+  footnote_font_size = "0.9rem",
+  footnote_position_bottom = "60px",
   left_column_subtle_color = apply_alpha(primary_color, 0.6),
   left_column_selected_color = primary_color,
   blockquote_left_border_color = apply_alpha(secondary_color, 0.5),
   table_row_border_color = "#ddd",
   table_row_even_background_color = darken_color(choose_dark_or_light(primary_color,
     secondary_color, primary_color), 0.3),
-  text_font_size = "20px",
-  header_h1_font_size = "55px",
-  header_h2_font_size = "45px",
-  header_h3_font_size = "35px",
+  base_font_size = "20px",
+  text_font_size = "1rem",
+  header_h1_font_size = "2.75rem",
+  header_h2_font_size = "2.25rem",
+  header_h3_font_size = "1.75rem",
   header_background_auto = FALSE,
   header_background_color = header_color,
   header_background_text_color = background_color,
   header_background_padding = "2rem 4rem 1.5rem 4rem",
   header_background_content_padding_top = "7rem",
   header_background_ignore_classes = c("normal", "inverse", "title", "middle", "bottom"),
-  text_slide_number_font_size = "0.9em",
+  text_slide_number_font_size = "0.9rem",
   text_font_google = NULL,
   text_font_family = "'Droid Serif'",
   text_font_weight = "normal",
   header_font_url = "https://fonts.googleapis.com/css?family=Yanone+Kaffeesatz",
   code_font_google = NULL,
   code_font_family = "'Source Code Pro'",
-  code_font_size = "0.9em",
+  code_font_size = "0.9rem",
   code_font_url = "https://fonts.googleapis.com/css?family=Source+Code+Pro:400,700",
   code_font_family_fallback = "'Lucida Console', Monaco",
   colors = NULL,
 
 \item{text_slide_number_color}{Slide Number Color. Defaults to \code{primary_color}. Modifies the \code{.remark-slide-number} class.}
 
-\item{padding}{Slide Padding in \verb{top right [bottom left]} format. Defaults to 1rem 4rem 1rem 4rem. Modifies the \code{.remark-slide-content} class.}
+\item{padding}{Slide Padding in \verb{top right [bottom left]} format. Defaults to 16px 64px 16px 64px. Modifies the \code{.remark-slide-content} class.}
 
 \item{background_image}{Background image applied to each \emph{and every} slide. Set \code{title_slide_background_image = "none"} to remove the background image from the title slide. Defaults to \code{NULL}. Modifies the \code{.remark-slide-content} class.}
 
 
 \item{code_inline_background_color}{Inline Code Background Color. Defaults to \code{NULL}. Modifies the \code{.remark-inline-code} class.}
 
-\item{code_inline_font_size}{Inline Code Text Font Size. Defaults to 1em. Modifies the \code{.remark-inline-code} class.}
+\item{code_inline_font_size}{Inline Code Text Font Size. Defaults to 1rem. Modifies the \code{.remark-inline-code} class.}
 
 \item{inverse_background_color}{Inverse Background Color. Defaults to \code{secondary_color}. Modifies the \code{.inverse} class.}
 
 
 \item{footnote_color}{Footnote text color (if \code{NA}, then it will be the same color as \code{text_color}). Defaults to \code{NULL}. Modifies the \code{.footnote} class.}
 
-\item{footnote_font_size}{Footnote font size. Defaults to 0.9em. Modifies the \code{.footnote} class.}
+\item{footnote_font_size}{Footnote font size. Defaults to 0.9rem. Modifies the \code{.footnote} class.}
 
-\item{footnote_position_bottom}{Footnote location from bottom of screen. Defaults to 3em. Modifies the \code{.footnote} class.}
+\item{footnote_position_bottom}{Footnote location from bottom of screen. Defaults to 60px. Modifies the \code{.footnote} class.}
 
 \item{left_column_subtle_color}{Left Column Text (not last). Defaults to \code{apply_alpha(primary_color, 0.6)}. Modifies the \verb{.left-column h2, .left-column h3} classes.}
 
 
 \item{table_row_even_background_color}{Table Even Row Background Color. Defaults to \code{darken_color(choose_dark_or_light(primary_color, secondary_color, primary_color), 0.3)}. Modifies the \verb{thead, tfoot, tr:nth-child(even)} elements.}
 
-\item{text_font_size}{Slide Body Text Font Size. Defaults to 20px. Modifies the \code{.remark-slide-content} class.}
+\item{base_font_size}{Base Font Size for All Slide Elements (must be \code{px}). Defaults to 20px. Modifies the \code{html} element.}
 
-\item{header_h1_font_size}{h1 Header Text Font Size. Defaults to 55px. Modifies the \verb{.remark-slide-content h1} class.}
+\item{text_font_size}{Slide Body Text Font Size. Defaults to 1rem. Modifies the \code{.remark-slide-content} class.}
 
-\item{header_h2_font_size}{h2 Header Text Font Size. Defaults to 45px. Modifies the \verb{.remark-slide-content h2} class.}
+\item{header_h1_font_size}{h1 Header Text Font Size. Defaults to 2.75rem. Modifies the \verb{.remark-slide-content h1} class.}
 
-\item{header_h3_font_size}{h3 Header Text Font Size. Defaults to 35px. Modifies the \verb{.remark-slide-content h3} class.}
+\item{header_h2_font_size}{h2 Header Text Font Size. Defaults to 2.25rem. Modifies the \verb{.remark-slide-content h2} class.}
+
+\item{header_h3_font_size}{h3 Header Text Font Size. Defaults to 1.75rem. Modifies the \verb{.remark-slide-content h3} class.}
 
 \item{header_background_auto}{Add background under slide title automatically for h1 header elements. If not enabled, use \code{class: header_background} to enable. Defaults to \code{FALSE}.}
 
 
 \item{header_background_ignore_classes}{Slide Classes Where Header with Background will not be Applied. Defaults to \code{c('normal', 'inverse', 'title', 'middle', 'bottom')}. Modifies the \code{.remark-slide-content} class.}
 
-\item{text_slide_number_font_size}{Slide Number Text Font Size. Defaults to 0.9em. Modifies the \code{.remark-slide-number} class.}
+\item{text_slide_number_font_size}{Slide Number Text Font Size. Defaults to 0.9rem. Modifies the \code{.remark-slide-number} class.}
 
 \item{text_font_google}{Use \code{google_font()} to specify body font. Defaults to \code{NULL}. Modifies the \code{body} element.}
 
 
 \item{code_font_family}{Code Font Family. Defaults to 'Source Code Pro'. Modifies the \verb{.remark-code, .remark-inline-code} classes.}
 
-\item{code_font_size}{Code Text Font Size. Defaults to 0.9em. Modifies the \code{.remark-inline} class.}
+\item{code_font_size}{Code Text Font Size. Defaults to 0.9rem. Modifies the \code{.remark-inline} class.}
 
 \item{code_font_url}{Code Font URL. Defaults to https://fonts.googleapis.com/css?family=Source+Code+Pro:400,700. Modifies the \verb{@import url} elements.}
 

man/style_mono_accent.Rd

   link_color = base_color,
   text_bold_color = base_color,
   text_slide_number_color = base_color,
-  padding = "1rem 4rem 1rem 4rem",
+  padding = "16px 64px 16px 64px",
   background_image = NULL,
   background_size = NULL,
   background_position = NULL,
   code_highlight_color = "rgba(255,255,0,0.5)",
   code_inline_color = base_color,
   code_inline_background_color = NULL,
-  code_inline_font_size = "1em",
+  code_inline_font_size = "1rem",
   inverse_background_color = base_color,
   inverse_text_color = white_color,
   inverse_text_shadow = FALSE,
   title_slide_background_size = NULL,
   title_slide_background_position = NULL,
   footnote_color = NULL,
-  footnote_font_size = "0.9em",
-  footnote_position_bottom = "3em",
+  footnote_font_size = "0.9rem",
+  footnote_position_bottom = "60px",
   left_column_subtle_color = apply_alpha(base_color, 0.6),
   left_column_selected_color = base_color,
   blockquote_left_border_color = apply_alpha(base_color, 0.5),
   table_border_color = "#666",
   table_row_border_color = "#ddd",
   table_row_even_background_color = lighten_color(base_color, 0.7),
-  text_font_size = "20px",
-  header_h1_font_size = "55px",
-  header_h2_font_size = "45px",
-  header_h3_font_size = "35px",
+  base_font_size = "20px",
+  text_font_size = "1rem",
+  header_h1_font_size = "2.75rem",
+  header_h2_font_size = "2.25rem",
+  header_h3_font_size = "1.75rem",
   header_background_auto = FALSE,
   header_background_color = header_color,
   header_background_text_color = background_color,
   header_background_padding = "2rem 4rem 1.5rem 4rem",
   header_background_content_padding_top = "7rem",
   header_background_ignore_classes = c("normal", "inverse", "title", "middle", "bottom"),
-  text_slide_number_font_size = "0.9em",
+  text_slide_number_font_size = "0.9rem",
   text_font_google = NULL,
   text_font_family = "'Droid Serif'",
   text_font_weight = "normal",
   header_font_url = "https://fonts.googleapis.com/css?family=Yanone+Kaffeesatz",
   code_font_google = NULL,
   code_font_family = "'Source Code Pro'",
-  code_font_size = "0.9em",
+  code_font_size = "0.9rem",
   code_font_url = "https://fonts.googleapis.com/css?family=Source+Code+Pro:400,700",
   code_font_family_fallback = "'Lucida Console', Monaco",
   colors = NULL,
 
 \item{text_slide_number_color}{Slide Number Color. Defaults to \code{base_color}. Modifies the \code{.remark-slide-number} class.}
 
-\item{padding}{Slide Padding in \verb{top right [bottom left]} format. Defaults to 1rem 4rem 1rem 4rem. Modifies the \code{.remark-slide-content} class.}
+\item{padding}{Slide Padding in \verb{top right [bottom left]} format. Defaults to 16px 64px 16px 64px. Modifies the \code{.remark-slide-content} class.}
 
 \item{background_image}{Background image applied to each \emph{and every} slide. Set \code{title_slide_background_image = "none"} to remove the background image from the title slide. Defaults to \code{NULL}. Modifies the \code{.remark-slide-content} class.}
 
 
 \item{code_inline_background_color}{Inline Code Background Color. Defaults to \code{NULL}. Modifies the \code{.remark-inline-code} class.}
 
-\item{code_inline_font_size}{Inline Code Text Font Size. Defaults to 1em. Modifies the \code{.remark-inline-code} class.}
+\item{code_inline_font_size}{Inline Code Text Font Size. Defaults to 1rem. Modifies the \code{.remark-inline-code} class.}
 
 \item{inverse_background_color}{Inverse Background Color. Defaults to \code{base_color}. Modifies the \code{.inverse} class.}
 
 
 \item{footnote_color}{Footnote text color (if \code{NA}, then it will be the same color as \code{text_color}). Defaults to \code{NULL}. Modifies the \code{.footnote} class.}
 
-\item{footnote_font_size}{Footnote font size. Defaults to 0.9em. Modifies the \code{.footnote} class.}
+\item{footnote_font_size}{Footnote font size. Defaults to 0.9rem. Modifies the \code{.footnote} class.}
 
-\item{footnote_position_bottom}{Footnote location from bottom of screen. Defaults to 3em. Modifies the \code{.footnote} class.}
+\item{footnote_position_bottom}{Footnote location from bottom of screen. Defaults to 60px. Modifies the \code{.footnote} class.}
 
 \item{left_column_subtle_color}{Left Column Text (not last). Defaults to \code{apply_alpha(base_color, 0.6)}. Modifies the \verb{.left-column h2, .left-column h3} classes.}
 
 
 \item{table_row_even_background_color}{Table Even Row Background Color. Defaults to \code{lighten_color(base_color, 0.7)}. Modifies the \verb{thead, tfoot, tr:nth-child(even)} elements.}
 
-\item{text_font_size}{Slide Body Text Font Size. Defaults to 20px. Modifies the \code{.remark-slide-content} class.}
+\item{base_font_size}{Base Font Size for All Slide Elements (must be \code{px}). Defaults to 20px. Modifies the \code{html} element.}
 
-\item{header_h1_font_size}{h1 Header Text Font Size. Defaults to 55px. Modifies the \verb{.remark-slide-content h1} class.}
+\item{text_font_size}{Slide Body Text Font Size. Defaults to 1rem. Modifies the \code{.remark-slide-content} class.}
 
-\item{header_h2_font_size}{h2 Header Text Font Size. Defaults to 45px. Modifies the \verb{.remark-slide-content h2} class.}
+\item{header_h1_font_size}{h1 Header Text Font Size. Defaults to 2.75rem. Modifies the \verb{.remark-slide-content h1} class.}
 
-\item{header_h3_font_size}{h3 Header Text Font Size. Defaults to 35px. Modifies the \verb{.remark-slide-content h3} class.}
+\item{header_h2_font_size}{h2 Header Text Font Size. Defaults to 2.25rem. Modifies the \verb{.remark-slide-content h2} class.}
+
+\item{header_h3_font_size}{h3 Header Text Font Size. Defaults to 1.75rem. Modifies the \verb{.remark-slide-content h3} class.}
 
 \item{header_background_auto}{Add background under slide title automatically for h1 header elements. If not enabled, use \code{class: header_background} to enable. Defaults to \code{FALSE}.}
 
 
 \item{header_background_ignore_classes}{Slide Classes Where Header with Background will not be Applied. Defaults to \code{c('normal', 'inverse', 'title', 'middle', 'bottom')}. Modifies the \code{.remark-slide-content} class.}
 
-\item{text_slide_number_font_size}{Slide Number Text Font Size. Defaults to 0.9em. Modifies the \code{.remark-slide-number} class.}
+\item{text_slide_number_font_size}{Slide Number Text Font Size. Defaults to 0.9rem. Modifies the \code{.remark-slide-number} class.}
 
 \item{text_font_google}{Use \code{google_font()} to specify body font. Defaults to \code{NULL}. Modifies the \code{body} element.}
 
 
 \item{code_font_family}{Code Font Family. Defaults to 'Source Code Pro'. Modifies the \verb{.remark-code, .remark-inline-code} classes.}
 
-\item{code_font_size}{Code Text Font Size. Defaults to 0.9em. Modifies the \code{.remark-inline} class.}
+\item{code_font_size}{Code Text Font Size. Defaults to 0.9rem. Modifies the \code{.remark-inline} class.}
 
 \item{code_font_url}{Code Font URL. Defaults to https://fonts.googleapis.com/css?family=Source+Code+Pro:400,700. Modifies the \verb{@import url} elements.}
 

man/style_mono_accent_inverse.Rd

   link_color = base_color,
   text_bold_color = base_color,
   text_slide_number_color = base_color,
-  padding = "1rem 4rem 1rem 4rem",
+  padding = "16px 64px 16px 64px",
   background_image = NULL,
   background_size = NULL,
   background_position = NULL,
   code_highlight_color = "rgba(255,255,0,0.5)",
   code_inline_color = base_color,
   code_inline_background_color = NULL,
-  code_inline_font_size = "1em",
+  code_inline_font_size = "1rem",
   inverse_background_color = base_color,
   inverse_text_color = black_color,
   inverse_text_shadow = FALSE,
   title_slide_background_size = NULL,
   title_slide_background_position = NULL,
   footnote_color = NULL,
-  footnote_font_size = "0.9em",
-  footnote_position_bottom = "3em",
+  footnote_font_size = "0.9rem",
+  footnote_position_bottom = "60px",
   left_column_subtle_color = apply_alpha(base_color, 0.6),
   left_column_selected_color = base_color,
   blockquote_left_border_color = apply_alpha(base_color, 0.5),
   table_border_color = "#666",
   table_row_border_color = "#ddd",
   table_row_even_background_color = darken_color(base_color, 0.7),
-  text_font_size = "20px",
-  header_h1_font_size = "55px",
-  header_h2_font_size = "45px",
-  header_h3_font_size = "35px",
+  base_font_size = "20px",
+  text_font_size = "1rem",
+  header_h1_font_size = "2.75rem",
+  header_h2_font_size = "2.25rem",
+  header_h3_font_size = "1.75rem",
   header_background_auto = FALSE,
   header_background_color = header_color,
   header_background_text_color = background_color,
   header_background_padding = "2rem 4rem 1.5rem 4rem",
   header_background_content_padding_top = "7rem",
   header_background_ignore_classes = c("normal", "inverse", "title", "middle", "bottom"),
-  text_slide_number_font_size = "0.9em",
+  text_slide_number_font_size = "0.9rem",
   text_font_google = NULL,
   text_font_family = "'Droid Serif'",
   text_font_weight = "normal",
   header_font_url = "https://fonts.googleapis.com/css?family=Yanone+Kaffeesatz",
   code_font_google = NULL,
   code_font_family = "'Source Code Pro'",
-  code_font_size = "0.9em",
+  code_font_size = "0.9rem",
   code_font_url = "https://fonts.googleapis.com/css?family=Source+Code+Pro:400,700",
   code_font_family_fallback = "'Lucida Console', Monaco",
   colors = NULL,
 
 \item{text_slide_number_color}{Slide Number Color. Defaults to \code{base_color}. Modifies the \code{.remark-slide-number} class.}
 
-\item{padding}{Slide Padding in \verb{top right [bottom left]} format. Defaults to 1rem 4rem 1rem 4rem. Modifies the \code{.remark-slide-content} class.}
+\item{padding}{Slide Padding in \verb{top right [bottom left]} format. Defaults to 16px 64px 16px 64px. Modifies the \code{.remark-slide-content} class.}
 
 \item{background_image}{Background image applied to each \emph{and every} slide. Set \code{title_slide_background_image = "none"} to remove the background image from the title slide. Defaults to \code{NULL}. Modifies the \code{.remark-slide-content} class.}
 
 
 \item{code_inline_background_color}{Inline Code Background Color. Defaults to \code{NULL}. Modifies the \code{.remark-inline-code} class.}
 
-\item{code_inline_font_size}{Inline Code Text Font Size. Defaults to 1em. Modifies the \code{.remark-inline-code} class.}
+\item{code_inline_font_size}{Inline Code Text Font Size. Defaults to 1rem. Modifies the \code{.remark-inline-code} class.}
 
 \item{inverse_background_color}{Inverse Background Color. Defaults to \code{base_color}. Modifies the \code{.inverse} class.}
 
 
 \item{footnote_color}{Footnote text color (if \code{NA}, then it will be the same color as \code{text_color}). Defaults to \code{NULL}. Modifies the \code{.footnote} class.}
 
-\item{footnote_font_size}{Footnote font size. Defaults to 0.9em. Modifies the \code{.footnote} class.}
+\item{footnote_font_size}{Footnote font size. Defaults to 0.9rem. Modifies the \code{.footnote} class.}
 
-\item{footnote_position_bottom}{Footnote location from bottom of screen. Defaults to 3em. Modifies the \code{.footnote} class.}
+\item{footnote_position_bottom}{Footnote location from bottom of screen. Defaults to 60px. Modifies the \code{.footnote} class.}
 
 \item{left_column_subtle_color}{Left Column Text (not last). Defaults to \code{apply_alpha(base_color, 0.6)}. Modifies the \verb{.left-column h2, .left-column h3} classes.}
 
 
 \item{table_row_even_background_color}{Table Even Row Background Color. Defaults to \code{darken_color(base_color, 0.7)}. Modifies the \verb{thead, tfoot, tr:nth-child(even)} elements.}
 
-\item{text_font_size}{Slide Body Text Font Size. Defaults to 20px. Modifies the \code{.remark-slide-content} class.}
+\item{base_font_size}{Base Font Size for All Slide Elements (must be \code{px}). Defaults to 20px. Modifies the \code{html} element.}
 
-\item{header_h1_font_size}{h1 Header Text Font Size. Defaults to 55px. Modifies the \verb{.remark-slide-content h1} class.}
+\item{text_font_size}{Slide Body Text Font Size. Defaults to 1rem. Modifies the \code{.remark-slide-content} class.}
 
-\item{header_h2_font_size}{h2 Header Text Font Size. Defaults to 45px. Modifies the \verb{.remark-slide-content h2} class.}
+\item{header_h1_font_size}{h1 Header Text Font Size. Defaults to 2.75rem. Modifies the \verb{.remark-slide-content h1} class.}
 
-\item{header_h3_font_size}{h3 Header Text Font Size. Defaults to 35px. Modifies the \verb{.remark-slide-content h3} class.}
+\item{header_h2_font_size}{h2 Header Text Font Size. Defaults to 2.25rem. Modifies the \verb{.remark-slide-content h2} class.}
+
+\item{header_h3_font_size}{h3 Header Text Font Size. Defaults to 1.75rem. Modifies the \verb{.remark-slide-content h3} class.}
 
 \item{header_background_auto}{Add background under slide title automatically for h1 header elements. If not enabled, use \code{class: header_background} to enable. Defaults to \code{FALSE}.}
 
 
 \item{header_background_ignore_classes}{Slide Classes Where Header with Background will not be Applied. Defaults to \code{c('normal', 'inverse', 'title', 'middle', 'bottom')}. Modifies the \code{.remark-slide-content} class.}
 
-\item{text_slide_number_font_size}{Slide Number Text Font Size. Defaults to 0.9em. Modifies the \code{.remark-slide-number} class.}
+\item{text_slide_number_font_size}{Slide Number Text Font Size. Defaults to 0.9rem. Modifies the \code{.remark-slide-number} class.}
 
 \item{text_font_google}{Use \code{google_font()} to specify body font. Defaults to \code{NULL}. Modifies the \code{body} element.}
 
 
 \item{code_font_family}{Code Font Family. Defaults to 'Source Code Pro'. Modifies the \verb{.remark-code, .remark-inline-code} classes.}
 
-\item{code_font_size}{Code Text Font Size. Defaults to 0.9em. Modifies the \code{.remark-inline} class.}
+\item{code_font_size}{Code Text Font Size. Defaults to 0.9rem. Modifies the \code{.remark-inline} class.}
 
 \item{code_font_url}{Code Font URL. Defaults to https://fonts.googleapis.com/css?family=Source+Code+Pro:400,700. Modifies the \verb{@import url} elements.}
 

man/style_mono_dark.Rd

   link_color = base_color,
   text_bold_color = base_color,
   text_slide_number_color = base_color,
-  padding = "1rem 4rem 1rem 4rem",
+  padding = "16px 64px 16px 64px",
   background_image = NULL,
   background_size = NULL,
   background_position = NULL,
   code_highlight_color = "rgba(255,255,0,0.5)",
   code_inline_color = base_color,
   code_inline_background_color = NULL,
-  code_inline_font_size = "1em",
+  code_inline_font_size = "1rem",
   inverse_background_color = base_color,
   inverse_text_color = black_color,
   inverse_text_shadow = FALSE,
   title_slide_background_size = NULL,
   title_slide_background_position = NULL,
   footnote_color = NULL,
-  footnote_font_size = "0.9em",
-  footnote_position_bottom = "3em",
+  footnote_font_size = "0.9rem",
+  footnote_position_bottom = "60px",
   left_column_subtle_color = apply_alpha(base_color, 0.6),
   left_column_selected_color = base_color,
   blockquote_left_border_color = apply_alpha(base_color, 0.5),
   table_border_color = "#666",
   table_row_border_color = "#ddd",
   table_row_even_background_color = darken_color(base_color, 0.7),
-  text_font_size = "20px",
-  header_h1_font_size = "55px",
-  header_h2_font_size = "45px",
-  header_h3_font_size = "35px",
+  base_font_size = "20px",
+  text_font_size = "1rem",
+  header_h1_font_size = "2.75rem",
+  header_h2_font_size = "2.25rem",
+  header_h3_font_size = "1.75rem",
   header_background_auto = FALSE,
   header_background_color = header_color,
   header_background_text_color = background_color,
   header_background_padding = "2rem 4rem 1.5rem 4rem",
   header_background_content_padding_top = "7rem",
   header_background_ignore_classes = c("normal", "inverse", "title", "middle", "bottom"),
-  text_slide_number_font_size = "0.9em",
+  text_slide_number_font_size = "0.9rem",
   text_font_google = NULL,
   text_font_family = "'Droid Serif'",
   text_font_weight = "normal",
   header_font_url = "https://fonts.googleapis.com/css?family=Yanone+Kaffeesatz",
   code_font_google = NULL,
   code_font_family = "'Source Code Pro'",
-  code_font_size = "0.9em",
+  code_font_size = "0.9rem",
   code_font_url = "https://fonts.googleapis.com/css?family=Source+Code+Pro:400,700",
   code_font_family_fallback = "'Lucida Console', Monaco",
   colors = NULL,
 
 \item{text_slide_number_color}{Slide Number Color. Defaults to \code{base_color}. Modifies the \code{.remark-slide-number} class.}
 
-\item{padding}{Slide Padding in \verb{top right [bottom left]} format. Defaults to 1rem 4rem 1rem 4rem. Modifies the \code{.remark-slide-content} class.}
+\item{padding}{Slide Padding in \verb{top right [bottom left]} format. Defaults to 16px 64px 16px 64px. Modifies the \code{.remark-slide-content} class.}
 
 \item{background_image}{Background image applied to each \emph{and every} slide. Set \code{title_slide_background_image = "none"} to remove the background image from the title slide. Defaults to \code{NULL}. Modifies the \code{.remark-slide-content} class.}
 
 
 \item{code_inline_background_color}{Inline Code Background Color. Defaults to \code{NULL}. Modifies the \code{.remark-inline-code} class.}
 
-\item{code_inline_font_size}{Inline Code Text Font Size. Defaults to 1em. Modifies the \code{.remark-inline-code} class.}
+\item{code_inline_font_size}{Inline Code Text Font Size. Defaults to 1rem. Modifies the \code{.remark-inline-code} class.}
 
 \item{inverse_background_color}{Inverse Background Color. Defaults to \code{base_color}. Modifies the \code{.inverse} class.}
 
 
 \item{footnote_color}{Footnote text color (if \code{NA}, then it will be the same color as \code{text_color}). Defaults to \code{NULL}. Modifies the \code{.footnote} class.}
 
-\item{footnote_font_size}{Footnote font size. Defaults to 0.9em. Modifies the \code{.footnote} class.}
+\item{footnote_font_size}{Footnote font size. Defaults to 0.9rem. Modifies the \code{.footnote} class.}
 
-\item{footnote_position_bottom}{Footnote location from bottom of screen. Defaults to 3em. Modifies the \code{.footnote} class.}
+\item{footnote_position_bottom}{Footnote location from bottom of screen. Defaults to 60px. Modifies the \code{.footnote} class.}
 
 \item{left_column_subtle_color}{Left Column Text (not last). Defaults to \code{apply_alpha(base_color, 0.6)}. Modifies the \verb{.left-column h2, .left-column h3} classes.}
 
 
 \item{table_row_even_background_color}{Table Even Row Background Color. Defaults to \code{darken_color(base_color, 0.7)}. Modifies the \verb{thead, tfoot, tr:nth-child(even)} elements.}
 
-\item{text_font_size}{Slide Body Text Font Size. Defaults to 20px. Modifies the \code{.remark-slide-content} class.}
+\item{base_font_size}{Base Font Size for All Slide Elements (must be \code{px}). Defaults to 20px. Modifies the \code{html} element.}
 
-\item{header_h1_font_size}{h1 Header Text Font Size. Defaults to 55px. Modifies the \verb{.remark-slide-content h1} class.}
+\item{text_font_size}{Slide Body Text Font Size. Defaults to 1rem. Modifies the \code{.remark-slide-content} class.}
 
-\item{header_h2_font_size}{h2 Header Text Font Size. Defaults to 45px. Modifies the \verb{.remark-slide-content h2} class.}
+\item{header_h1_font_size}{h1 Header Text Font Size. Defaults to 2.75rem. Modifies the \verb{.remark-slide-content h1} class.}
 
-\item{header_h3_font_size}{h3 Header Text Font Size. Defaults to 35px. Modifies the \verb{.remark-slide-content h3} class.}
+\item{header_h2_font_size}{h2 Header Text Font Size. Defaults to 2.25rem. Modifies the \verb{.remark-slide-content h2} class.}
+
+\item{header_h3_font_size}{h3 Header Text Font Size. Defaults to 1.75rem. Modifies the \verb{.remark-slide-content h3} class.}
 
 \item{header_background_auto}{Add background under slide title automatically for h1 header elements. If not enabled, use \code{class: header_background} to enable. Defaults to \code{FALSE}.}
 
 
 \item{header_background_ignore_classes}{Slide Classes Where Header with Background will not be Applied. Defaults to \code{c('normal', 'inverse', 'title', 'middle', 'bottom')}. Modifies the \code{.remark-slide-content} class.}
 
-\item{text_slide_number_font_size}{Slide Number Text Font Size. Defaults to 0.9em. Modifies the \code{.remark-slide-number} class.}
+\item{text_slide_number_font_size}{Slide Number Text Font Size. Defaults to 0.9rem. Modifies the \code{.remark-slide-number} class.}
 
 \item{text_font_google}{Use \code{google_font()} to specify body font. Defaults to \code{NULL}. Modifies the \code{body} element.}
 
 
 \item{code_font_family}{Code Font Family. Defaults to 'Source Code Pro'. Modifies the \verb{.remark-code, .remark-inline-code} classes.}
 
-\item{code_font_size}{Code Text Font Size. Defaults to 0.9em. Modifies the \code{.remark-inline} class.}
+\item{code_font_size}{Code Text Font Size. Defaults to 0.9rem. Modifies the \code{.remark-inline} class.}
 
 \item{code_font_url}{Code Font URL. Defaults to https://fonts.googleapis.com/css?family=Source+Code+Pro:400,700. Modifies the \verb{@import url} elements.}
 

man/style_mono_light.Rd

   link_color = base_color,
   text_bold_color = base_color,
   text_slide_number_color = base_color,
-  padding = "1rem 4rem 1rem 4rem",
+  padding = "16px 64px 16px 64px",
   background_image = NULL,
   background_size = NULL,
   background_position = NULL,
   code_highlight_color = "rgba(255,255,0,0.5)",
   code_inline_color = base_color,
   code_inline_background_color = NULL,
-  code_inline_font_size = "1em",
+  code_inline_font_size = "1rem",
   inverse_background_color = base_color,
   inverse_text_color = white_color,
   inverse_text_shadow = FALSE,
   title_slide_background_size = NULL,
   title_slide_background_position = NULL,
   footnote_color = NULL,
-  footnote_font_size = "0.9em",
-  footnote_position_bottom = "3em",
+  footnote_font_size = "0.9rem",
+  footnote_position_bottom = "60px",
   left_column_subtle_color = apply_alpha(base_color, 0.6),
   left_column_selected_color = base_color,
   blockquote_left_border_color = apply_alpha(base_color, 0.5),
   table_border_color = "#666",
   table_row_border_color = "#ddd",
   table_row_even_background_color = lighten_color(base_color, 0.8),
-  text_font_size = "20px",
-  header_h1_font_size = "55px",
-  header_h2_font_size = "45px",
-  header_h3_font_size = "35px",
+  base_font_size = "20px",
+  text_font_size = "1rem",
+  header_h1_font_size = "2.75rem",
+  header_h2_font_size = "2.25rem",
+  header_h3_font_size = "1.75rem",
   header_background_auto = FALSE,
   header_background_color = header_color,
   header_background_text_color = background_color,
   header_background_padding = "2rem 4rem 1.5rem 4rem",
   header_background_content_padding_top = "7rem",
   header_background_ignore_classes = c("normal", "inverse", "title", "middle", "bottom"),
-  text_slide_number_font_size = "0.9em",
+  text_slide_number_font_size = "0.9rem",
   text_font_google = NULL,
   text_font_family = "'Droid Serif'",
   text_font_weight = "normal",
   header_font_url = "https://fonts.googleapis.com/css?family=Yanone+Kaffeesatz",
   code_font_google = NULL,
   code_font_family = "'Source Code Pro'",
-  code_font_size = "0.9em",
+  code_font_size = "0.9rem",
   code_font_url = "https://fonts.googleapis.com/css?family=Source+Code+Pro:400,700",
   code_font_family_fallback = "'Lucida Console', Monaco",
   colors = NULL,
 
 \item{text_slide_number_color}{Slide Number Color. Defaults to \code{base_color}. Modifies the \code{.remark-slide-number} class.}
 
-\item{padding}{Slide Padding in \verb{top right [bottom left]} format. Defaults to 1rem 4rem 1rem 4rem. Modifies the \code{.remark-slide-content} class.}
+\item{padding}{Slide Padding in \verb{top right [bottom left]} format. Defaults to 16px 64px 16px 64px. Modifies the \code{.remark-slide-content} class.}
 
 \item{background_image}{Background image applied to each \emph{and every} slide. Set \code{title_slide_background_image = "none"} to remove the background image from the title slide. Defaults to \code{NULL}. Modifies the \code{.remark-slide-content} class.}
 
 
 \item{code_inline_background_color}{Inline Code Background Color. Defaults to \code{NULL}. Modifies the \code{.remark-inline-code} class.}
 
-\item{code_inline_font_size}{Inline Code Text Font Size. Defaults to 1em. Modifies the \code{.remark-inline-code} class.}
+\item{code_inline_font_size}{Inline Code Text Font Size. Defaults to 1rem. Modifies the \code{.remark-inline-code} class.}
 
 \item{inverse_background_color}{Inverse Background Color. Defaults to \code{base_color}. Modifies the \code{.inverse} class.}
 
 
 \item{footnote_color}{Footnote text color (if \code{NA}, then it will be the same color as \code{text_color}). Defaults to \code{NULL}. Modifies the \code{.footnote} class.}
 
-\item{footnote_font_size}{Footnote font size. Defaults to 0.9em. Modifies the \code{.footnote} class.}
+\item{footnote_font_size}{Footnote font size. Defaults to 0.9rem. Modifies the \code{.footnote} class.}
 
-\item{footnote_position_bottom}{Footnote location from bottom of screen. Defaults to 3em. Modifies the \code{.footnote} class.}
+\item{footnote_position_bottom}{Footnote location from bottom of screen. Defaults to 60px. Modifies the \code{.footnote} class.}
 
 \item{left_column_subtle_color}{Left Column Text (not last). Defaults to \code{apply_alpha(base_color, 0.6)}. Modifies the \verb{.left-column h2, .left-column h3} classes.}
 
 
 \item{table_row_even_background_color}{Table Even Row Background Color. Defaults to \code{lighten_color(base_color, 0.8)}. Modifies the \verb{thead, tfoot, tr:nth-child(even)} elements.}
 
-\item{text_font_size}{Slide Body Text Font Size. Defaults to 20px. Modifies the \code{.remark-slide-content} class.}
+\item{base_font_size}{Base Font Size for All Slide Elements (must be \code{px}). Defaults to 20px. Modifies the \code{html} element.}
 
-\item{header_h1_font_size}{h1 Header Text Font Size. Defaults to 55px. Modifies the \verb{.remark-slide-content h1} class.}
+\item{text_font_size}{Slide Body Text Font Size. Defaults to 1rem. Modifies the \code{.remark-slide-content} class.}
 
-\item{header_h2_font_size}{h2 Header Text Font Size. Defaults to 45px. Modifies the \verb{.remark-slide-content h2} class.}
+\item{header_h1_font_size}{h1 Header Text Font Size. Defaults to 2.75rem. Modifies the \verb{.remark-slide-content h1} class.}
 
-\item{header_h3_font_size}{h3 Header Text Font Size. Defaults to 35px. Modifies the \verb{.remark-slide-content h3} class.}
+\item{header_h2_font_size}{h2 Header Text Font Size. Defaults to 2.25rem. Modifies the \verb{.remark-slide-content h2} class.}
+
+\item{header_h3_font_size}{h3 Header Text Font Size. Defaults to 1.75rem. Modifies the \verb{.remark-slide-content h3} class.}
 
 \item{header_background_auto}{Add background under slide title automatically for h1 header elements. If not enabled, use \code{class: header_background} to enable. Defaults to \code{FALSE}.}
 
 
 \item{header_background_ignore_classes}{Slide Classes Where Header with Background will not be Applied. Defaults to \code{c('normal', 'inverse', 'title', 'middle', 'bottom')}. Modifies the \code{.remark-slide-content} class.}
 
-\item{text_slide_number_font_size}{Slide Number Text Font Size. Defaults to 0.9em. Modifies the \code{.remark-slide-number} class.}
+\item{text_slide_number_font_size}{Slide Number Text Font Size. Defaults to 0.9rem. Modifies the \code{.remark-slide-number} class.}
 
 \item{text_font_google}{Use \code{google_font()} to specify body font. Defaults to \code{NULL}. Modifies the \code{body} element.}
 
 
 \item{code_font_family}{Code Font Family. Defaults to 'Source Code Pro'. Modifies the \verb{.remark-code, .remark-inline-code} classes.}
 
-\item{code_font_size}{Code Text Font Size. Defaults to 0.9em. Modifies the \code{.remark-inline} class.}
+\item{code_font_size}{Code Text Font Size. Defaults to 0.9rem. Modifies the \code{.remark-inline} class.}
 
 \item{code_font_url}{Code Font URL. Defaults to https://fonts.googleapis.com/css?family=Source+Code+Pro:400,700. Modifies the \verb{@import url} elements.}
 

man/style_solarized_dark.Rd

   link_color = "#b58900",
   text_bold_color = "#d33682",
   text_slide_number_color = "#586e75",
-  padding = "1rem 4rem 1rem 4rem",
+  padding = "16px 64px 16px 64px",
   background_image = NULL,
   background_size = NULL,
   background_position = NULL,
   code_highlight_color = "#268bd240",
   code_inline_color = "#6c71c4",
   code_inline_background_color = NULL,
-  code_inline_font_size = "1em",
+  code_inline_font_size = "1rem",
   inverse_background_color = "#fdf6e3",
   inverse_text_color = "#002b36",
   inverse_text_shadow = FALSE,
   title_slide_background_size = NULL,
   title_slide_background_position = NULL,
   footnote_color = NULL,
-  footnote_font_size = "0.9em",
-  footnote_position_bottom = "3em",
+  footnote_font_size = "0.9rem",
+  footnote_position_bottom = "60px",
   left_column_subtle_color = "#586e75",
   left_column_selected_color = "#93a1a1",
   blockquote_left_border_color = "#cb4b16",
   table_border_color = "#657b83",
   table_row_border_color = "#657b83",
   table_row_even_background_color = "#073642",
-  text_font_size = "20px",
-  header_h1_font_size = "55px",
-  header_h2_font_size = "45px",
-  header_h3_font_size = "35px",
+  base_font_size = "20px",
+  text_font_size = "1rem",
+  header_h1_font_size = "2.75rem",
+  header_h2_font_size = "2.25rem",
+  header_h3_font_size = "1.75rem",
   header_background_auto = FALSE,
   header_background_color = header_color,
   header_background_text_color = background_color,
   header_background_padding = "2rem 4rem 1.5rem 4rem",
   header_background_content_padding_top = "7rem",
   header_background_ignore_classes = c("normal", "inverse", "title", "middle", "bottom"),
-  text_slide_number_font_size = "0.9em",
+  text_slide_number_font_size = "0.9rem",
   text_font_google = NULL,
   text_font_family = "'Droid Serif'",
   text_font_weight = "normal",
   header_font_url = "https://fonts.googleapis.com/css?family=Yanone+Kaffeesatz",
   code_font_google = NULL,
   code_font_family = "'Source Code Pro'",
-  code_font_size = "0.9em",
+  code_font_size = "0.9rem",
   code_font_url = "https://fonts.googleapis.com/css?family=Source+Code+Pro:400,700",
   code_font_family_fallback = "'Lucida Console', Monaco",
   colors = NULL,
 
 \item{text_slide_number_color}{Slide Number Color. Defaults to #586e75. Modifies the \code{.remark-slide-number} class.}
 
-\item{padding}{Slide Padding in \verb{top right [bottom left]} format. Defaults to 1rem 4rem 1rem 4rem. Modifies the \code{.remark-slide-content} class.}
+\item{padding}{Slide Padding in \verb{top right [bottom left]} format. Defaults to 16px 64px 16px 64px. Modifies the \code{.remark-slide-content} class.}
 
 \item{background_image}{Background image applied to each \emph{and every} slide. Set \code{title_slide_background_image = "none"} to remove the background image from the title slide. Defaults to \code{NULL}. Modifies the \code{.remark-slide-content} class.}
 
 
 \item{code_inline_background_color}{Inline Code Background Color. Defaults to \code{NULL}. Modifies the \code{.remark-inline-code} class.}
 
-\item{code_inline_font_size}{Inline Code Text Font Size. Defaults to 1em. Modifies the \code{.remark-inline-code} class.}
+\item{code_inline_font_size}{Inline Code Text Font Size. Defaults to 1rem. Modifies the \code{.remark-inline-code} class.}
 
 \item{inverse_background_color}{Inverse Background Color. Defaults to #fdf6e3. Modifies the \code{.inverse} class.}
 
 
 \item{footnote_color}{Footnote text color (if \code{NA}, then it will be the same color as \code{text_color}). Defaults to \code{NULL}. Modifies the \code{.footnote} class.}
 
-\item{footnote_font_size}{Footnote font size. Defaults to 0.9em. Modifies the \code{.footnote} class.}
+\item{footnote_font_size}{Footnote font size. Defaults to 0.9rem. Modifies the \code{.footnote} class.}
 
-\item{footnote_position_bottom}{Footnote location from bottom of screen. Defaults to 3em. Modifies the \code{.footnote} class.}
+\item{footnote_position_bottom}{Footnote location from bottom of screen. Defaults to 60px. Modifies the \code{.footnote} class.}
 
 \item{left_column_subtle_color}{Left Column Text (not last). Defaults to #586e75. Modifies the \verb{.left-column h2, .left-column h3} classes.}
 
 
 \item{table_row_even_background_color}{Table Even Row Background Color. Defaults to #073642. Modifies the \verb{thead, tfoot, tr:nth-child(even)} elements.}
 
-\item{text_font_size}{Slide Body Text Font Size. Defaults to 20px. Modifies the \code{.remark-slide-content} class.}
+\item{base_font_size}{Base Font Size for All Slide Elements (must be \code{px}). Defaults to 20px. Modifies the \code{html} element.}
 
-\item{header_h1_font_size}{h1 Header Text Font Size. Defaults to 55px. Modifies the \verb{.remark-slide-content h1} class.}
+\item{text_font_size}{Slide Body Text Font Size. Defaults to 1rem. Modifies the \code{.remark-slide-content} class.}
 
-\item{header_h2_font_size}{h2 Header Text Font Size. Defaults to 45px. Modifies the \verb{.remark-slide-content h2} class.}
+\item{header_h1_font_size}{h1 Header Text Font Size. Defaults to 2.75rem. Modifies the \verb{.remark-slide-content h1} class.}
 
-\item{header_h3_font_size}{h3 Header Text Font Size. Defaults to 35px. Modifies the \verb{.remark-slide-content h3} class.}
+\item{header_h2_font_size}{h2 Header Text Font Size. Defaults to 2.25rem. Modifies the \verb{.remark-slide-content h2} class.}
+
+\item{header_h3_font_size}{h3 Header Text Font Size. Defaults to 1.75rem. Modifies the \verb{.remark-slide-content h3} class.}
 
 \item{header_background_auto}{Add background under slide title automatically for h1 header elements. If not enabled, use \code{class: header_background} to enable. Defaults to \code{FALSE}.}
 
 
 \item{header_background_ignore_classes}{Slide Classes Where Header with Background will not be Applied. Defaults to \code{c('normal', 'inverse', 'title', 'middle', 'bottom')}. Modifies the \code{.remark-slide-content} class.}
 
-\item{text_slide_number_font_size}{Slide Number Text Font Size. Defaults to 0.9em. Modifies the \code{.remark-slide-number} class.}
+\item{text_slide_number_font_size}{Slide Number Text Font Size. Defaults to 0.9rem. Modifies the \code{.remark-slide-number} class.}
 
 \item{text_font_google}{Use \code{google_font()} to specify body font. Defaults to \code{NULL}. Modifies the \code{body} element.}
 
 
 \item{code_font_family}{Code Font Family. Defaults to 'Source Code Pro'. Modifies the \verb{.remark-code, .remark-inline-code} classes.}
 
-\item{code_font_size}{Code Text Font Size. Defaults to 0.9em. Modifies the \code{.remark-inline} class.}
+\item{code_font_size}{Code Text Font Size. Defaults to 0.9rem. Modifies the \code{.remark-inline} class.}
 
 \item{code_font_url}{Code Font URL. Defaults to https://fonts.googleapis.com/css?family=Source+Code+Pro:400,700. Modifies the \verb{@import url} elements.}
 

man/style_solarized_light.Rd

   link_color = "#b58900",
   text_bold_color = "#d33682",
   text_slide_number_color = "#93a1a1",
-  padding = "1rem 4rem 1rem 4rem",
+  padding = "16px 64px 16px 64px",
   background_image = NULL,
   background_size = NULL,
   background_position = NULL,
   code_highlight_color = "#268bd240",
   code_inline_color = "#6c71c4",
   code_inline_background_color = NULL,
-  code_inline_font_size = "1em",
+  code_inline_font_size = "1rem",
   inverse_background_color = "#002b36",
   inverse_text_color = "#fdf6e3",
   inverse_text_shadow = FALSE,
   title_slide_background_size = NULL,
   title_slide_background_position = NULL,
   footnote_color = NULL,
-  footnote_font_size = "0.9em",
-  footnote_position_bottom = "3em",
+  footnote_font_size = "0.9rem",
+  footnote_position_bottom = "60px",
   left_column_subtle_color = "#93a1a1",
   left_column_selected_color = "#586e75",
   blockquote_left_border_color = "#cb4b16",
   table_border_color = "#839496",
   table_row_border_color = "#839496",
   table_row_even_background_color = "#eee8d5",
-  text_font_size = "20px",
-  header_h1_font_size = "55px",
-  header_h2_font_size = "45px",
-  header_h3_font_size = "35px",
+  base_font_size = "20px",
+  text_font_size = "1rem",
+  header_h1_font_size = "2.75rem",
+  header_h2_font_size = "2.25rem",
+  header_h3_font_size = "1.75rem",
   header_background_auto = FALSE,
   header_background_color = header_color,
   header_background_text_color = background_color,
   header_background_padding = "2rem 4rem 1.5rem 4rem",
   header_background_content_padding_top = "7rem",
   header_background_ignore_classes = c("normal", "inverse", "title", "middle", "bottom"),
-  text_slide_number_font_size = "0.9em",
+  text_slide_number_font_size = "0.9rem",
   text_font_google = NULL,
   text_font_family = "'Droid Serif'",
   text_font_weight = "normal",
   header_font_url = "https://fonts.googleapis.com/css?family=Yanone+Kaffeesatz",
   code_font_google = NULL,
   code_font_family = "'Source Code Pro'",
-  code_font_size = "0.9em",
+  code_font_size = "0.9rem",
   code_font_url = "https://fonts.googleapis.com/css?family=Source+Code+Pro:400,700",
   code_font_family_fallback = "'Lucida Console', Monaco",
   colors = NULL,
 
 \item{text_slide_number_color}{Slide Number Color. Defaults to #93a1a1. Modifies the \code{.remark-slide-number} class.}
 
-\item{padding}{Slide Padding in \verb{top right [bottom left]} format. Defaults to 1rem 4rem 1rem 4rem. Modifies the \code{.remark-slide-content} class.}
+\item{padding}{Slide Padding in \verb{top right [bottom left]} format. Defaults to 16px 64px 16px 64px. Modifies the \code{.remark-slide-content} class.}
 
 \item{background_image}{Background image applied to each \emph{and every} slide. Set \code{title_slide_background_image = "none"} to remove the background image from the title slide. Defaults to \code{NULL}. Modifies the \code{.remark-slide-content} class.}
 
 
 \item{code_inline_background_color}{Inline Code Background Color. Defaults to \code{NULL}. Modifies the \code{.remark-inline-code} class.}
 
-\item{code_inline_font_size}{Inline Code Text Font Size. Defaults to 1em. Modifies the \code{.remark-inline-code} class.}
+\item{code_inline_font_size}{Inline Code Text Font Size. Defaults to 1rem. Modifies the \code{.remark-inline-code} class.}
 
 \item{inverse_background_color}{Inverse Background Color. Defaults to #002b36. Modifies the \code{.inverse} class.}
 
 
 \item{footnote_color}{Footnote text color (if \code{NA}, then it will be the same color as \code{text_color}). Defaults to \code{NULL}. Modifies the \code{.footnote} class.}
 
-\item{footnote_font_size}{Footnote font size. Defaults to 0.9em. Modifies the \code{.footnote} class.}
+\item{footnote_font_size}{Footnote font size. Defaults to 0.9rem. Modifies the \code{.footnote} class.}
 
-\item{footnote_position_bottom}{Footnote location from bottom of screen. Defaults to 3em. Modifies the \code{.footnote} class.}
+\item{footnote_position_bottom}{Footnote location from bottom of screen. Defaults to 60px. Modifies the \code{.footnote} class.}
 
 \item{left_column_subtle_color}{Left Column Text (not last). Defaults to #93a1a1. Modifies the \verb{.left-column h2, .left-column h3} classes.}
 
 
 \item{table_row_even_background_color}{Table Even Row Background Color. Defaults to #eee8d5. Modifies the \verb{thead, tfoot, tr:nth-child(even)} elements.}
 
-\item{text_font_size}{Slide Body Text Font Size. Defaults to 20px. Modifies the \code{.remark-slide-content} class.}
+\item{base_font_size}{Base Font Size for All Slide Elements (must be \code{px}). Defaults to 20px. Modifies the \code{html} element.}
 
-\item{header_h1_font_size}{h1 Header Text Font Size. Defaults to 55px. Modifies the \verb{.remark-slide-content h1} class.}
+\item{text_font_size}{Slide Body Text Font Size. Defaults to 1rem. Modifies the \code{.remark-slide-content} class.}
 
-\item{header_h2_font_size}{h2 Header Text Font Size. Defaults to 45px. Modifies the \verb{.remark-slide-content h2} class.}
+\item{header_h1_font_size}{h1 Header Text Font Size. Defaults to 2.75rem. Modifies the \verb{.remark-slide-content h1} class.}
 
-\item{header_h3_font_size}{h3 Header Text Font Size. Defaults to 35px. Modifies the \verb{.remark-slide-content h3} class.}
+\item{header_h2_font_size}{h2 Header Text Font Size. Defaults to 2.25rem. Modifies the \verb{.remark-slide-content h2} class.}
+
+\item{header_h3_font_size}{h3 Header Text Font Size. Defaults to 1.75rem. Modifies the \verb{.remark-slide-content h3} class.}
 
 \item{header_background_auto}{Add background under slide title automatically for h1 header elements. If not enabled, use \code{class: header_background} to enable. Defaults to \code{FALSE}.}
 
 
 \item{header_background_ignore_classes}{Slide Classes Where Header with Background will not be Applied. Defaults to \code{c('normal', 'inverse', 'title', 'middle', 'bottom')}. Modifies the \code{.remark-slide-content} class.}
 
-\item{text_slide_number_font_size}{Slide Number Text Font Size. Defaults to 0.9em. Modifies the \code{.remark-slide-number} class.}
+\item{text_slide_number_font_size}{Slide Number Text Font Size. Defaults to 0.9rem. Modifies the \code{.remark-slide-number} class.}
 
 \item{text_font_google}{Use \code{google_font()} to specify body font. Defaults to \code{NULL}. Modifies the \code{body} element.}
 
 
 \item{code_font_family}{Code Font Family. Defaults to 'Source Code Pro'. Modifies the \verb{.remark-code, .remark-inline-code} classes.}
 
-\item{code_font_size}{Code Text Font Size. Defaults to 0.9em. Modifies the \code{.remark-inline} class.}
+\item{code_font_size}{Code Text Font Size. Defaults to 0.9rem. Modifies the \code{.remark-inline} class.}
 
 \item{code_font_url}{Code Font URL. Defaults to https://fonts.googleapis.com/css?family=Source+Code+Pro:400,700. Modifies the \verb{@import url} elements.}
 

man/style_xaringan.Rd

   link_color = "rgb(249, 38, 114)",
   text_bold_color = NULL,
   text_slide_number_color = inverse_background_color,
-  padding = "1rem 4rem 1rem 4rem",
+  padding = "16px 64px 16px 64px",
   background_image = NULL,
   background_size = NULL,
   background_position = NULL,
   code_highlight_color = "rgba(255,255,0,0.5)",
   code_inline_color = "#000",
   code_inline_background_color = NULL,
-  code_inline_font_size = "1em",
+  code_inline_font_size = "1rem",
   inverse_background_color = "#272822",
   inverse_text_color = "#d6d6d6",
   inverse_text_shadow = FALSE,
   title_slide_background_size = NULL,
   title_slide_background_position = NULL,
   footnote_color = NULL,
-  footnote_font_size = "0.9em",
-  footnote_position_bottom = "3em",
+  footnote_font_size = "0.9rem",
+  footnote_position_bottom = "60px",
   left_column_subtle_color = "#777",
   left_column_selected_color = "#000",
   blockquote_left_border_color = "lightgray",
   table_border_color = "#666",
   table_row_border_color = "#ddd",
   table_row_even_background_color = "#eee",
-  text_font_size = "20px",
-  header_h1_font_size = "55px",
-  header_h2_font_size = "45px",
-  header_h3_font_size = "35px",
+  base_font_size = "20px",
+  text_font_size = "1rem",
+  header_h1_font_size = "2.75rem",
+  header_h2_font_size = "2.25rem",
+  header_h3_font_size = "1.75rem",
   header_background_auto = FALSE,
   header_background_color = header_color,
   header_background_text_color = background_color,
   header_background_padding = "2rem 4rem 1.5rem 4rem",
   header_background_content_padding_top = "7rem",
   header_background_ignore_classes = c("normal", "inverse", "title", "middle", "bottom"),
-  text_slide_number_font_size = "0.9em",
+  text_slide_number_font_size = "0.9rem",
   text_font_google = NULL,
   text_font_family = "'Droid Serif'",
   text_font_weight = "normal",
   header_font_url = "https://fonts.googleapis.com/css?family=Yanone+Kaffeesatz",
   code_font_google = NULL,
   code_font_family = "'Source Code Pro'",
-  code_font_size = "0.9em",
+  code_font_size = "0.9rem",
   code_font_url = "https://fonts.googleapis.com/css?family=Source+Code+Pro:400,700",
   code_font_family_fallback = "'Lucida Console', Monaco",
   colors = NULL,
 
 \item{text_slide_number_color}{Slide Number Color. Defaults to \code{inverse_background_color}. Modifies the \code{.remark-slide-number} class.}
 
-\item{padding}{Slide Padding in \verb{top right [bottom left]} format. Defaults to 1rem 4rem 1rem 4rem. Modifies the \code{.remark-slide-content} class.}
+\item{padding}{Slide Padding in \verb{top right [bottom left]} format. Defaults to 16px 64px 16px 64px. Modifies the \code{.remark-slide-content} class.}
 
 \item{background_image}{Background image applied to each \emph{and every} slide. Set \code{title_slide_background_image = "none"} to remove the background image from the title slide. Defaults to \code{NULL}. Modifies the \code{.remark-slide-content} class.}
 
 
 \item{code_inline_background_color}{Inline Code Background Color. Defaults to \code{NULL}. Modifies the \code{.remark-inline-code} class.}
 
-\item{code_inline_font_size}{Inline Code Text Font Size. Defaults to 1em. Modifies the \code{.remark-inline-code} class.}
+\item{code_inline_font_size}{Inline Code Text Font Size. Defaults to 1rem. Modifies the \code{.remark-inline-code} class.}
 
 \item{inverse_background_color}{Inverse Background Color. Defaults to #272822. Modifies the \code{.inverse} class.}
 
 
 \item{footnote_color}{Footnote text color (if \code{NA}, then it will be the same color as \code{text_color}). Defaults to \code{NULL}. Modifies the \code{.footnote} class.}
 
-\item{footnote_font_size}{Footnote font size. Defaults to 0.9em. Modifies the \code{.footnote} class.}
+\item{footnote_font_size}{Footnote font size. Defaults to 0.9rem. Modifies the \code{.footnote} class.}
 
-\item{footnote_position_bottom}{Footnote location from bottom of screen. Defaults to 3em. Modifies the \code{.footnote} class.}
+\item{footnote_position_bottom}{Footnote location from bottom of screen. Defaults to 60px. Modifies the \code{.footnote} class.}
 
 \item{left_column_subtle_color}{Left Column Text (not last). Defaults to #777. Modifies the \verb{.left-column h2, .left-column h3} classes.}
 
 
 \item{table_row_even_background_color}{Table Even Row Background Color. Defaults to #eee. Modifies the \verb{thead, tfoot, tr:nth-child(even)} elements.}
 
-\item{text_font_size}{Slide Body Text Font Size. Defaults to 20px. Modifies the \code{.remark-slide-content} class.}
+\item{base_font_size}{Base Font Size for All Slide Elements (must be \code{px}). Defaults to 20px. Modifies the \code{html} element.}
 
-\item{header_h1_font_size}{h1 Header Text Font Size. Defaults to 55px. Modifies the \verb{.remark-slide-content h1} class.}
+\item{text_font_size}{Slide Body Text Font Size. Defaults to 1rem. Modifies the \code{.remark-slide-content} class.}
 
-\item{header_h2_font_size}{h2 Header Text Font Size. Defaults to 45px. Modifies the \verb{.remark-slide-content h2} class.}
+\item{header_h1_font_size}{h1 Header Text Font Size. Defaults to 2.75rem. Modifies the \verb{.remark-slide-content h1} class.}
 
-\item{header_h3_font_size}{h3 Header Text Font Size. Defaults to 35px. Modifies the \verb{.remark-slide-content h3} class.}
+\item{header_h2_font_size}{h2 Header Text Font Size. Defaults to 2.25rem. Modifies the \verb{.remark-slide-content h2} class.}
+
+\item{header_h3_font_size}{h3 Header Text Font Size. Defaults to 1.75rem. Modifies the \verb{.remark-slide-content h3} class.}
 
 \item{header_background_auto}{Add background under slide title automatically for h1 header elements. If not enabled, use \code{class: header_background} to enable. Defaults to \code{FALSE}.}
 
 
 \item{header_background_ignore_classes}{Slide Classes Where Header with Background will not be Applied. Defaults to \code{c('normal', 'inverse', 'title', 'middle', 'bottom')}. Modifies the \code{.remark-slide-content} class.}
 
-\item{text_slide_number_font_size}{Slide Number Text Font Size. Defaults to 0.9em. Modifies the \code{.remark-slide-number} class.}
+\item{text_slide_number_font_size}{Slide Number Text Font Size. Defaults to 0.9rem. Modifies the \code{.remark-slide-number} class.}
 
 \item{text_font_google}{Use \code{google_font()} to specify body font. Defaults to \code{NULL}. Modifies the \code{body} element.}
 
 
 \item{code_font_family}{Code Font Family. Defaults to 'Source Code Pro'. Modifies the \verb{.remark-code, .remark-inline-code} classes.}
 
-\item{code_font_size}{Code Text Font Size. Defaults to 0.9em. Modifies the \code{.remark-inline} class.}
+\item{code_font_size}{Code Text Font Size. Defaults to 0.9rem. Modifies the \code{.remark-inline} class.}
 
 \item{code_font_url}{Code Font URL. Defaults to https://fonts.googleapis.com/css?family=Source+Code+Pro:400,700. Modifies the \verb{@import url} elements.}
 

tests/testthat/test-style_xaringan.R

   expect_true(file.exists(tmpfile))
   expect_true(grepl("xaringanthemer", readLines(tmpfile)[3]))
 })
+
+test_that("style_xaringan() warns if base_font_size is not absolute", {
+  tmpfile <- tempfile(fileext = ".css")
+  expect_warning(
+    style_xaringan(outfile = tmpfile, base_font_size = "1em"),
+    "absolute units"
+  )
+})