Add text_bold_font_weight argument and css rule

Fixes #50

NEWS.md

@@ -1,5 +1,9 @@
 # xaringanthemer (development version)
 
+* Added `text_bold_font_weight` argument to xaringanthemer style functions with
+  a corresponding CSS rule setting the `font-weight` property of `<strong>`
+  elements (thanks @matiasandina, #50).
+
 # xaringanthemes 0.3.4
 
 * Maintenance release to avoid issues with upcoming R 4.1.0 (#49)

R/style_duo.R

@@ -210,6 +210,8 @@
 #'   element. Accepts CSS
 #'   [font-weight](https://developer.mozilla.org/en-US/docs/Web/CSS/font-weight)
 #'   property values.
+#' @param text_bold_font_weight Body Bold Text Font Weight. Defaults to bold.
+#'   Modifies the `strong` element.
 #' @param text_font_url Body Text Font URL(s). Defaults to
 #'   `xaringanthemer_font_default("text_font_url")`. Modifies the
 #'   `@import url()` elements.
@@ -320,6 +322,7 @@ style_duo <- function(
   text_font_google = NULL,
   text_font_family = xaringanthemer_font_default("text_font_family"),
   text_font_weight = xaringanthemer_font_default("text_font_weight"),
+  text_bold_font_weight = "bold",
   text_font_url = xaringanthemer_font_default("text_font_url"),
   text_font_family_fallback = xaringanthemer_font_default("text_font_family_fallback"),
   text_font_base = "sans-serif",

R/style_duo_accent.R

@@ -222,6 +222,8 @@
 #'   element. Accepts CSS
 #'   [font-weight](https://developer.mozilla.org/en-US/docs/Web/CSS/font-weight)
 #'   property values.
+#' @param text_bold_font_weight Body Bold Text Font Weight. Defaults to bold.
+#'   Modifies the `strong` element.
 #' @param text_font_url Body Text Font URL(s). Defaults to
 #'   `xaringanthemer_font_default("text_font_url")`. Modifies the
 #'   `@import url()` elements.
@@ -334,6 +336,7 @@ style_duo_accent <- function(
   text_font_google = NULL,
   text_font_family = xaringanthemer_font_default("text_font_family"),
   text_font_weight = xaringanthemer_font_default("text_font_weight"),
+  text_bold_font_weight = "bold",
   text_font_url = xaringanthemer_font_default("text_font_url"),
   text_font_family_fallback = xaringanthemer_font_default("text_font_family_fallback"),
   text_font_base = "sans-serif",

R/style_duo_accent_inverse.R

@@ -223,6 +223,8 @@
 #'   element. Accepts CSS
 #'   [font-weight](https://developer.mozilla.org/en-US/docs/Web/CSS/font-weight)
 #'   property values.
+#' @param text_bold_font_weight Body Bold Text Font Weight. Defaults to bold.
+#'   Modifies the `strong` element.
 #' @param text_font_url Body Text Font URL(s). Defaults to
 #'   `xaringanthemer_font_default("text_font_url")`. Modifies the
 #'   `@import url()` elements.
@@ -335,6 +337,7 @@ style_duo_accent_inverse <- function(
   text_font_google = NULL,
   text_font_family = xaringanthemer_font_default("text_font_family"),
   text_font_weight = xaringanthemer_font_default("text_font_weight"),
+  text_bold_font_weight = "bold",
   text_font_url = xaringanthemer_font_default("text_font_url"),
   text_font_family_fallback = xaringanthemer_font_default("text_font_family_fallback"),
   text_font_base = "sans-serif",

R/style_mono_accent.R

@@ -213,6 +213,8 @@
 #'   element. Accepts CSS
 #'   [font-weight](https://developer.mozilla.org/en-US/docs/Web/CSS/font-weight)
 #'   property values.
+#' @param text_bold_font_weight Body Bold Text Font Weight. Defaults to bold.
+#'   Modifies the `strong` element.
 #' @param text_font_url Body Text Font URL(s). Defaults to
 #'   `xaringanthemer_font_default("text_font_url")`. Modifies the
 #'   `@import url()` elements.
@@ -324,6 +326,7 @@ style_mono_accent <- function(
   text_font_google = NULL,
   text_font_family = xaringanthemer_font_default("text_font_family"),
   text_font_weight = xaringanthemer_font_default("text_font_weight"),
+  text_bold_font_weight = "bold",
   text_font_url = xaringanthemer_font_default("text_font_url"),
   text_font_family_fallback = xaringanthemer_font_default("text_font_family_fallback"),
   text_font_base = "sans-serif",

R/style_mono_accent_inverse.R

@@ -214,6 +214,8 @@
 #'   element. Accepts CSS
 #'   [font-weight](https://developer.mozilla.org/en-US/docs/Web/CSS/font-weight)
 #'   property values.
+#' @param text_bold_font_weight Body Bold Text Font Weight. Defaults to bold.
+#'   Modifies the `strong` element.
 #' @param text_font_url Body Text Font URL(s). Defaults to
 #'   `xaringanthemer_font_default("text_font_url")`. Modifies the
 #'   `@import url()` elements.
@@ -325,6 +327,7 @@ style_mono_accent_inverse <- function(
   text_font_google = NULL,
   text_font_family = xaringanthemer_font_default("text_font_family"),
   text_font_weight = xaringanthemer_font_default("text_font_weight"),
+  text_bold_font_weight = "bold",
   text_font_url = xaringanthemer_font_default("text_font_url"),
   text_font_family_fallback = xaringanthemer_font_default("text_font_family_fallback"),
   text_font_base = "sans-serif",

R/style_mono_dark.R

@@ -215,6 +215,8 @@
 #'   element. Accepts CSS
 #'   [font-weight](https://developer.mozilla.org/en-US/docs/Web/CSS/font-weight)
 #'   property values.
+#' @param text_bold_font_weight Body Bold Text Font Weight. Defaults to bold.
+#'   Modifies the `strong` element.
 #' @param text_font_url Body Text Font URL(s). Defaults to
 #'   `xaringanthemer_font_default("text_font_url")`. Modifies the
 #'   `@import url()` elements.
@@ -326,6 +328,7 @@ style_mono_dark <- function(
   text_font_google = NULL,
   text_font_family = xaringanthemer_font_default("text_font_family"),
   text_font_weight = xaringanthemer_font_default("text_font_weight"),
+  text_bold_font_weight = "bold",
   text_font_url = xaringanthemer_font_default("text_font_url"),
   text_font_family_fallback = xaringanthemer_font_default("text_font_family_fallback"),
   text_font_base = "sans-serif",

R/style_mono_light.R

@@ -215,6 +215,8 @@
 #'   element. Accepts CSS
 #'   [font-weight](https://developer.mozilla.org/en-US/docs/Web/CSS/font-weight)
 #'   property values.
+#' @param text_bold_font_weight Body Bold Text Font Weight. Defaults to bold.
+#'   Modifies the `strong` element.
 #' @param text_font_url Body Text Font URL(s). Defaults to
 #'   `xaringanthemer_font_default("text_font_url")`. Modifies the
 #'   `@import url()` elements.
@@ -326,6 +328,7 @@ style_mono_light <- function(
   text_font_google = NULL,
   text_font_family = xaringanthemer_font_default("text_font_family"),
   text_font_weight = xaringanthemer_font_default("text_font_weight"),
+  text_bold_font_weight = "bold",
   text_font_url = xaringanthemer_font_default("text_font_url"),
   text_font_family_fallback = xaringanthemer_font_default("text_font_family_fallback"),
   text_font_base = "sans-serif",

R/style_solarized_dark.R

@@ -200,6 +200,8 @@
 #'   element. Accepts CSS
 #'   [font-weight](https://developer.mozilla.org/en-US/docs/Web/CSS/font-weight)
 #'   property values.
+#' @param text_bold_font_weight Body Bold Text Font Weight. Defaults to bold.
+#'   Modifies the `strong` element.
 #' @param text_font_url Body Text Font URL(s). Defaults to
 #'   `xaringanthemer_font_default("text_font_url")`. Modifies the
 #'   `@import url()` elements.
@@ -308,6 +310,7 @@ style_solarized_dark <- function(
   text_font_google = NULL,
   text_font_family = xaringanthemer_font_default("text_font_family"),
   text_font_weight = xaringanthemer_font_default("text_font_weight"),
+  text_bold_font_weight = "bold",
   text_font_url = xaringanthemer_font_default("text_font_url"),
   text_font_family_fallback = xaringanthemer_font_default("text_font_family_fallback"),
   text_font_base = "sans-serif",

R/style_solarized_light.R

@@ -200,6 +200,8 @@
 #'   element. Accepts CSS
 #'   [font-weight](https://developer.mozilla.org/en-US/docs/Web/CSS/font-weight)
 #'   property values.
+#' @param text_bold_font_weight Body Bold Text Font Weight. Defaults to bold.
+#'   Modifies the `strong` element.
 #' @param text_font_url Body Text Font URL(s). Defaults to
 #'   `xaringanthemer_font_default("text_font_url")`. Modifies the
 #'   `@import url()` elements.
@@ -308,6 +310,7 @@ style_solarized_light <- function(
   text_font_google = NULL,
   text_font_family = xaringanthemer_font_default("text_font_family"),
   text_font_weight = xaringanthemer_font_default("text_font_weight"),
+  text_bold_font_weight = "bold",
   text_font_url = xaringanthemer_font_default("text_font_url"),
   text_font_family_fallback = xaringanthemer_font_default("text_font_family_fallback"),
   text_font_base = "sans-serif",

R/style_xaringan.R

@@ -200,6 +200,8 @@
 #'   element. Accepts CSS
 #'   [font-weight](https://developer.mozilla.org/en-US/docs/Web/CSS/font-weight)
 #'   property values.
+#' @param text_bold_font_weight Body Bold Text Font Weight. Defaults to bold.
+#'   Modifies the `strong` element.
 #' @param text_font_url Body Text Font URL(s). Defaults to
 #'   `xaringanthemer_font_default("text_font_url")`. Modifies the
 #'   `@import url()` elements.
@@ -307,6 +309,7 @@ style_xaringan <- function(
   text_font_google = NULL,
   text_font_family = xaringanthemer_font_default("text_font_family"),
   text_font_weight = xaringanthemer_font_default("text_font_weight"),
+  text_bold_font_weight = "bold",
   text_font_url = xaringanthemer_font_default("text_font_url"),
   text_font_family_fallback = xaringanthemer_font_default("text_font_family_fallback"),
   text_font_base = "sans-serif",

data-raw/theme_template_variables.R

@@ -49,6 +49,7 @@ template_variables <- tibble::tribble(
   , "text_font_google", "{NULL}", "body", "Use `google_font()` to specify body font", NA_character_
   , "text_font_family", '{xaringanthemer_font_default("text_font_family")}', "body", "Body Text Font Family (xaringan default is `'Droid Serif'`)", "--text-font-family"
   , "text_font_weight", '{xaringanthemer_font_default("text_font_weight")}', "body", "Body Text Font Weight", NA_character_
+  , "text_bold_font_weight", 'bold', "strong", "Body Bold Text Font Weight", NA_character_
   , "text_font_url", '{xaringanthemer_font_default("text_font_url")}', "@import url()", "Body Text Font URL(s)", NA_character_
   , "text_font_family_fallback", '{xaringanthemer_font_default("text_font_family_fallback")}', "body", "Body Text Font Fallbacks", "--text-font-family-fallback"
   , "text_font_base", "sans-serif", "body", "Body Text Base Font (Total Failure Fallback)", "--text-font-base"

inst/resources/template.css

@@ -110,9 +110,10 @@ h1, h2, h3 {
   opacity: 1;
   font-size: {{text_slide_number_font_size}};
 }
-{{#text_bold_color}}
-strong { color: var(--text-bold-color); }
-{{/text_bold_color}}
+strong {
+  font-weight: {{text_bold_font_weight}};{{#text_bold_color}}
+  color: var(--text-bold-color);{{/text_bold_color}}
+}
 a, a > code {
   color: var(--link-color);
   text-decoration: none;

man/style_duo.Rd

@@ -57,6 +57,7 @@ style_duo(
   text_font_google = NULL,
   text_font_family = xaringanthemer_font_default("text_font_family"),
   text_font_weight = xaringanthemer_font_default("text_font_weight"),
+  text_bold_font_weight = "bold",
   text_font_url = xaringanthemer_font_default("text_font_url"),
   text_font_family_fallback = xaringanthemer_font_default("text_font_family_fallback"),
   text_font_base = "sans-serif",
@@ -337,6 +338,9 @@ element. Accepts CSS
 \href{https://developer.mozilla.org/en-US/docs/Web/CSS/font-weight}{font-weight}
 property values.}
 
+\item{text_bold_font_weight}{Body Bold Text Font Weight. Defaults to bold.
+Modifies the \code{strong} element.}
+
 \item{text_font_url}{Body Text Font URL(s). Defaults to
 \code{xaringanthemer_font_default("text_font_url")}. Modifies the
 \verb{@import url()} elements.}

man/style_duo_accent.Rd

@@ -62,6 +62,7 @@ style_duo_accent(
   text_font_google = NULL,
   text_font_family = xaringanthemer_font_default("text_font_family"),
   text_font_weight = xaringanthemer_font_default("text_font_weight"),
+  text_bold_font_weight = "bold",
   text_font_url = xaringanthemer_font_default("text_font_url"),
   text_font_family_fallback = xaringanthemer_font_default("text_font_family_fallback"),
   text_font_base = "sans-serif",
@@ -356,6 +357,9 @@ element. Accepts CSS
 \href{https://developer.mozilla.org/en-US/docs/Web/CSS/font-weight}{font-weight}
 property values.}
 
+\item{text_bold_font_weight}{Body Bold Text Font Weight. Defaults to bold.
+Modifies the \code{strong} element.}
+
 \item{text_font_url}{Body Text Font URL(s). Defaults to
 \code{xaringanthemer_font_default("text_font_url")}. Modifies the
 \verb{@import url()} elements.}

man/style_duo_accent_inverse.Rd

@@ -63,6 +63,7 @@ style_duo_accent_inverse(
   text_font_google = NULL,
   text_font_family = xaringanthemer_font_default("text_font_family"),
   text_font_weight = xaringanthemer_font_default("text_font_weight"),
+  text_bold_font_weight = "bold",
   text_font_url = xaringanthemer_font_default("text_font_url"),
   text_font_family_fallback = xaringanthemer_font_default("text_font_family_fallback"),
   text_font_base = "sans-serif",
@@ -358,6 +359,9 @@ element. Accepts CSS
 \href{https://developer.mozilla.org/en-US/docs/Web/CSS/font-weight}{font-weight}
 property values.}
 
+\item{text_bold_font_weight}{Body Bold Text Font Weight. Defaults to bold.
+Modifies the \code{strong} element.}
+
 \item{text_font_url}{Body Text Font URL(s). Defaults to
 \code{xaringanthemer_font_default("text_font_url")}. Modifies the
 \verb{@import url()} elements.}

man/style_mono_accent.Rd

@@ -57,6 +57,7 @@ style_mono_accent(
   text_font_google = NULL,
   text_font_family = xaringanthemer_font_default("text_font_family"),
   text_font_weight = xaringanthemer_font_default("text_font_weight"),
+  text_bold_font_weight = "bold",
   text_font_url = xaringanthemer_font_default("text_font_url"),
   text_font_family_fallback = xaringanthemer_font_default("text_font_family_fallback"),
   text_font_base = "sans-serif",
@@ -341,6 +342,9 @@ element. Accepts CSS
 \href{https://developer.mozilla.org/en-US/docs/Web/CSS/font-weight}{font-weight}
 property values.}
 
+\item{text_bold_font_weight}{Body Bold Text Font Weight. Defaults to bold.
+Modifies the \code{strong} element.}
+
 \item{text_font_url}{Body Text Font URL(s). Defaults to
 \code{xaringanthemer_font_default("text_font_url")}. Modifies the
 \verb{@import url()} elements.}

man/style_mono_accent_inverse.Rd

@@ -57,6 +57,7 @@ style_mono_accent_inverse(
   text_font_google = NULL,
   text_font_family = xaringanthemer_font_default("text_font_family"),
   text_font_weight = xaringanthemer_font_default("text_font_weight"),
+  text_bold_font_weight = "bold",
   text_font_url = xaringanthemer_font_default("text_font_url"),
   text_font_family_fallback = xaringanthemer_font_default("text_font_family_fallback"),
   text_font_base = "sans-serif",
@@ -342,6 +343,9 @@ element. Accepts CSS
 \href{https://developer.mozilla.org/en-US/docs/Web/CSS/font-weight}{font-weight}
 property values.}
 
+\item{text_bold_font_weight}{Body Bold Text Font Weight. Defaults to bold.
+Modifies the \code{strong} element.}
+
 \item{text_font_url}{Body Text Font URL(s). Defaults to
 \code{xaringanthemer_font_default("text_font_url")}. Modifies the
 \verb{@import url()} elements.}

man/style_mono_dark.Rd

@@ -57,6 +57,7 @@ style_mono_dark(
   text_font_google = NULL,
   text_font_family = xaringanthemer_font_default("text_font_family"),
   text_font_weight = xaringanthemer_font_default("text_font_weight"),
+  text_bold_font_weight = "bold",
   text_font_url = xaringanthemer_font_default("text_font_url"),
   text_font_family_fallback = xaringanthemer_font_default("text_font_family_fallback"),
   text_font_base = "sans-serif",
@@ -343,6 +344,9 @@ element. Accepts CSS
 \href{https://developer.mozilla.org/en-US/docs/Web/CSS/font-weight}{font-weight}
 property values.}
 
+\item{text_bold_font_weight}{Body Bold Text Font Weight. Defaults to bold.
+Modifies the \code{strong} element.}
+
 \item{text_font_url}{Body Text Font URL(s). Defaults to
 \code{xaringanthemer_font_default("text_font_url")}. Modifies the
 \verb{@import url()} elements.}

man/style_mono_light.Rd

@@ -57,6 +57,7 @@ style_mono_light(
   text_font_google = NULL,
   text_font_family = xaringanthemer_font_default("text_font_family"),
   text_font_weight = xaringanthemer_font_default("text_font_weight"),
+  text_bold_font_weight = "bold",
   text_font_url = xaringanthemer_font_default("text_font_url"),
   text_font_family_fallback = xaringanthemer_font_default("text_font_family_fallback"),
   text_font_base = "sans-serif",
@@ -343,6 +344,9 @@ element. Accepts CSS
 \href{https://developer.mozilla.org/en-US/docs/Web/CSS/font-weight}{font-weight}
 property values.}
 
+\item{text_bold_font_weight}{Body Bold Text Font Weight. Defaults to bold.
+Modifies the \code{strong} element.}
+
 \item{text_font_url}{Body Text Font URL(s). Defaults to
 \code{xaringanthemer_font_default("text_font_url")}. Modifies the
 \verb{@import url()} elements.}

man/style_solarized_dark.Rd

@@ -54,6 +54,7 @@ style_solarized_dark(
   text_font_google = NULL,
   text_font_family = xaringanthemer_font_default("text_font_family"),
   text_font_weight = xaringanthemer_font_default("text_font_weight"),
+  text_bold_font_weight = "bold",
   text_font_url = xaringanthemer_font_default("text_font_url"),
   text_font_family_fallback = xaringanthemer_font_default("text_font_family_fallback"),
   text_font_base = "sans-serif",
@@ -322,6 +323,9 @@ element. Accepts CSS
 \href{https://developer.mozilla.org/en-US/docs/Web/CSS/font-weight}{font-weight}
 property values.}
 
+\item{text_bold_font_weight}{Body Bold Text Font Weight. Defaults to bold.
+Modifies the \code{strong} element.}
+
 \item{text_font_url}{Body Text Font URL(s). Defaults to
 \code{xaringanthemer_font_default("text_font_url")}. Modifies the
 \verb{@import url()} elements.}

man/style_solarized_light.Rd

@@ -54,6 +54,7 @@ style_solarized_light(
   text_font_google = NULL,
   text_font_family = xaringanthemer_font_default("text_font_family"),
   text_font_weight = xaringanthemer_font_default("text_font_weight"),
+  text_bold_font_weight = "bold",
   text_font_url = xaringanthemer_font_default("text_font_url"),
   text_font_family_fallback = xaringanthemer_font_default("text_font_family_fallback"),
   text_font_base = "sans-serif",
@@ -322,6 +323,9 @@ element. Accepts CSS
 \href{https://developer.mozilla.org/en-US/docs/Web/CSS/font-weight}{font-weight}
 property values.}
 
+\item{text_bold_font_weight}{Body Bold Text Font Weight. Defaults to bold.
+Modifies the \code{strong} element.}
+
 \item{text_font_url}{Body Text Font URL(s). Defaults to
 \code{xaringanthemer_font_default("text_font_url")}. Modifies the
 \verb{@import url()} elements.}

man/style_xaringan.Rd

@@ -57,6 +57,7 @@ style_xaringan(
   text_font_google = NULL,
   text_font_family = xaringanthemer_font_default("text_font_family"),
   text_font_weight = xaringanthemer_font_default("text_font_weight"),
+  text_bold_font_weight = "bold",
   text_font_url = xaringanthemer_font_default("text_font_url"),
   text_font_family_fallback = xaringanthemer_font_default("text_font_family_fallback"),
   text_font_base = "sans-serif",
@@ -328,6 +329,9 @@ element. Accepts CSS
 \href{https://developer.mozilla.org/en-US/docs/Web/CSS/font-weight}{font-weight}
 property values.}
 
+\item{text_bold_font_weight}{Body Bold Text Font Weight. Defaults to bold.
+Modifies the \code{strong} element.}
+
 \item{text_font_url}{Body Text Font URL(s). Defaults to
 \code{xaringanthemer_font_default("text_font_url")}. Modifies the
 \verb{@import url()} elements.}

tests/testthat/css/duo-header_bg.css

@@ -106,7 +106,10 @@ h1, h2, h3 {
   opacity: 1;
   font-size: 0.9em;
 }
-strong { color: var(--text-bold-color); }
+strong {
+  font-weight: bold;
+  color: var(--text-bold-color);
+}
 a, a > code {
   color: var(--link-color);
   text-decoration: none;

tests/testthat/css/duo.css

@@ -106,7 +106,10 @@ h1, h2, h3 {
   opacity: 1;
   font-size: 0.9em;
 }
-strong { color: var(--text-bold-color); }
+strong {
+  font-weight: bold;
+  color: var(--text-bold-color);
+}
 a, a > code {
   color: var(--link-color);
   text-decoration: none;

tests/testthat/css/duo_accent.css

@@ -108,7 +108,10 @@ h1, h2, h3 {
   opacity: 1;
   font-size: 0.9em;
 }
-strong { color: var(--text-bold-color); }
+strong {
+  font-weight: bold;
+  color: var(--text-bold-color);
+}
 a, a > code {
   color: var(--link-color);
   text-decoration: none;

tests/testthat/css/duo_accent_inverse.css

@@ -108,7 +108,10 @@ h1, h2, h3 {
   opacity: 1;
   font-size: 0.9em;
 }
-strong { color: var(--text-bold-color); }
+strong {
+  font-weight: bold;
+  color: var(--text-bold-color);
+}
 a, a > code {
   color: var(--link-color);
   text-decoration: none;

tests/testthat/css/google_fonts.css

@@ -103,6 +103,9 @@ h1, h2, h3 {
   opacity: 1;
   font-size: 0.9em;
 }
+strong {
+  font-weight: bold;
+}
 a, a > code {
   color: var(--link-color);
   text-decoration: none;

tests/testthat/css/mono_accent.css

@@ -107,7 +107,10 @@ h1, h2, h3 {
   opacity: 1;
   font-size: 0.9em;
 }
-strong { color: var(--text-bold-color); }
+strong {
+  font-weight: bold;
+  color: var(--text-bold-color);
+}
 a, a > code {
   color: var(--link-color);
   text-decoration: none;

tests/testthat/css/mono_accent_inverse.css

@@ -107,7 +107,10 @@ h1, h2, h3 {
   opacity: 1;
   font-size: 0.9em;
 }
-strong { color: var(--text-bold-color); }
+strong {
+  font-weight: bold;
+  color: var(--text-bold-color);
+}
 a, a > code {
   color: var(--link-color);
   text-decoration: none;

tests/testthat/css/mono_dark.css

@@ -107,7 +107,10 @@ h1, h2, h3 {
   opacity: 1;
   font-size: 0.9em;
 }
-strong { color: var(--text-bold-color); }
+strong {
+  font-weight: bold;
+  color: var(--text-bold-color);
+}
 a, a > code {
   color: var(--link-color);
   text-decoration: none;

tests/testthat/css/mono_light-header_bg.css

@@ -107,7 +107,10 @@ h1, h2, h3 {
   opacity: 1;
   font-size: 0.9em;
 }
-strong { color: var(--text-bold-color); }
+strong {
+  font-weight: bold;
+  color: var(--text-bold-color);
+}
 a, a > code {
   color: var(--link-color);
   text-decoration: none;

tests/testthat/css/mono_light.css

@@ -107,7 +107,10 @@ h1, h2, h3 {
   opacity: 1;
   font-size: 0.9em;
 }
-strong { color: var(--text-bold-color); }
+strong {
+  font-weight: bold;
+  color: var(--text-bold-color);
+}
 a, a > code {
   color: var(--link-color);
   text-decoration: none;

tests/testthat/css/solarized_dark-header_bg.css

@@ -104,7 +104,10 @@ h1, h2, h3 {
   opacity: 1;
   font-size: 0.9em;
 }
-strong { color: var(--text-bold-color); }
+strong {
+  font-weight: bold;
+  color: var(--text-bold-color);
+}
 a, a > code {
   color: var(--link-color);
   text-decoration: none;

tests/testthat/css/solarized_dark.css

@@ -104,7 +104,10 @@ h1, h2, h3 {
   opacity: 1;
   font-size: 0.9em;
 }
-strong { color: var(--text-bold-color); }
+strong {
+  font-weight: bold;
+  color: var(--text-bold-color);
+}
 a, a > code {
   color: var(--link-color);
   text-decoration: none;

tests/testthat/css/solarized_light.css

@@ -104,7 +104,10 @@ h1, h2, h3 {
   opacity: 1;
   font-size: 0.9em;
 }
-strong { color: var(--text-bold-color); }
+strong {
+  font-weight: bold;
+  color: var(--text-bold-color);
+}
 a, a > code {
   color: var(--link-color);
   text-decoration: none;

tests/testthat/css/xaringan.css

@@ -104,6 +104,9 @@ h1, h2, h3 {
   opacity: 1;
   font-size: 0.9em;
 }
+strong {
+  font-weight: bold;
+}
 a, a > code {
   color: var(--link-color);
   text-decoration: none;