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  <main id="main" class="col-md-9"><div class="page-header">
      <img src="../logo.png" class="logo" alt=""><h1>Add Extra CSS Styles</h1>
      <small class="dont-index">Source: <a href="https://github.com/gadenbuie/xaringanthemer/blob/HEAD/R/style_extra_css.R" class="external-link"><code>R/style_extra_css.R</code></a></small>
      <div class="d-none name"><code>style_extra_css.Rd</code></div>
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    <div class="ref-description section level2">
    <p>Adds css elements to target <code>outfile</code>, typically a xaringanthemer css file.
The <code>css</code> argument takes a list of CSS classes and definitions (see examples below)
and appends CSS rules to <code>outfile</code>.</p>
    </div>

    <div class="section level2">
    <h2 id="ref-usage">Usage<a class="anchor" aria-label="anchor" href="#ref-usage"></a></h2>
    <div class="sourceCode"><pre class="sourceCode r"><code><span class="fu">style_extra_css</span><span class="op">(</span>
  <span class="va">css</span>,
  outfile <span class="op">=</span> <span class="st">"xaringan-themer.css"</span>,
  append <span class="op">=</span> <span class="cn">TRUE</span>,
  heading <span class="op">=</span> <span class="st">"Extra CSS"</span>
<span class="op">)</span></code></pre></div>
    </div>

    <div class="section level2">
    <h2 id="arguments">Arguments<a class="anchor" aria-label="anchor" href="#arguments"></a></h2>
    <dl><dt>css</dt>
<dd><p>A named list of CSS definitions each containing a named list
of CSS property-value pairs, i.e.
<code>list(".class-id" = list("css-property" = "value"))</code></p></dd>
<dt>outfile</dt>
<dd><p>Customized xaringan CSS output file name, default is "xaringan-themer.css"</p></dd>
<dt>append</dt>
<dd><p>If <code>TRUE</code> output will be appended to <code>outfile</code>; otherwise,
it will overwrite the contents of <code>outfile</code>.</p></dd>
<dt>heading</dt>
<dd><p>Heading added above extra CSS. Use <code>NULL</code> to disable.</p></dd>
</dl></div>
    <div class="section level2">
    <h2 id="css-list">css list<a class="anchor" aria-label="anchor" href="#css-list"></a></h2>
    

<p>The <code>css</code> input must be a named list of css properties and values within a
named list of class identifiers, for example
<code>list(".class-id" = list("css-property" = "value"))</code>.</p>
    </div>

    <div class="section level2">
    <h2 id="ref-examples">Examples<a class="anchor" aria-label="anchor" href="#ref-examples"></a></h2>
    <div class="sourceCode"><pre class="sourceCode r"><code><span class="r-in"><span class="fu">style_extra_css</span><span class="op">(</span></span>
<span class="r-in">  outfile <span class="op">=</span> <span class="fu"><a href="https://rdrr.io/r/base/showConnections.html" class="external-link">stdout</a></span><span class="op">(</span><span class="op">)</span>,</span>
<span class="r-in">  css <span class="op">=</span> <span class="fu"><a href="https://rdrr.io/r/base/list.html" class="external-link">list</a></span><span class="op">(</span></span>
<span class="r-in">    <span class="st">".red"</span> <span class="op">=</span> <span class="fu"><a href="https://rdrr.io/r/base/list.html" class="external-link">list</a></span><span class="op">(</span>color <span class="op">=</span> <span class="st">"red"</span><span class="op">)</span>,</span>
<span class="r-in">    <span class="st">".small"</span> <span class="op">=</span> <span class="fu"><a href="https://rdrr.io/r/base/list.html" class="external-link">list</a></span><span class="op">(</span><span class="st">"font-size"</span> <span class="op">=</span> <span class="st">"90%"</span><span class="op">)</span>,</span>
<span class="r-in">    <span class="st">".full-width"</span> <span class="op">=</span> <span class="fu"><a href="https://rdrr.io/r/base/list.html" class="external-link">list</a></span><span class="op">(</span></span>
<span class="r-in">      display <span class="op">=</span> <span class="st">"flex"</span>,</span>
<span class="r-in">      width <span class="op">=</span> <span class="st">"100%"</span>,</span>
<span class="r-in">      flex <span class="op">=</span> <span class="st">"1 1 auto"</span></span>
<span class="r-in">    <span class="op">)</span></span>
<span class="r-in">  <span class="op">)</span></span>
<span class="r-in"><span class="op">)</span></span>
<span class="r-out co"><span class="r-pr">#&gt;</span> </span>
<span class="r-out co"><span class="r-pr">#&gt;</span> </span>
<span class="r-out co"><span class="r-pr">#&gt;</span> /* Extra CSS */</span>
<span class="r-out co"><span class="r-pr">#&gt;</span> .red {</span>
<span class="r-out co"><span class="r-pr">#&gt;</span>   color: red;</span>
<span class="r-out co"><span class="r-pr">#&gt;</span> }</span>
<span class="r-out co"><span class="r-pr">#&gt;</span> .small {</span>
<span class="r-out co"><span class="r-pr">#&gt;</span>   font-size: 90%;</span>
<span class="r-out co"><span class="r-pr">#&gt;</span> }</span>
<span class="r-out co"><span class="r-pr">#&gt;</span> .full-width {</span>
<span class="r-out co"><span class="r-pr">#&gt;</span>   display: flex;</span>
<span class="r-out co"><span class="r-pr">#&gt;</span>   width: 100%;</span>
<span class="r-out co"><span class="r-pr">#&gt;</span>   flex: 1 1 auto;</span>
<span class="r-out co"><span class="r-pr">#&gt;</span> }</span>
</code></pre></div>
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