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<meta property="og:description" content="Adds css elements to target outfile, typically a xaringanthemer css file.
The css argument takes a list of CSS classes and definitions (see examples below)
and appends CSS rules to outfile." />
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    <h1>Add Extra CSS Styles</h1>
    <small class="dont-index">Source: <a href='https://github.com/gadenbuie/xaringanthemer/blob/master/R/style_extra_css.R'><code>R/style_extra_css.R</code></a></small>
    <div class="hidden name"><code>style_extra_css.Rd</code></div>
    </div>

    <div class="ref-description">
    <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>

    <pre class="usage"><span class='fu'>style_extra_css</span>(
  <span class='no'>css</span>,
  <span class='kw'>outfile</span> <span class='kw'>=</span> <span class='st'>"xaringan-themer.css"</span>,
  <span class='kw'>append</span> <span class='kw'>=</span> <span class='fl'>TRUE</span>,
  <span class='kw'>heading</span> <span class='kw'>=</span> <span class='st'>"Extra CSS"</span>
)</pre>

    <h2 class="hasAnchor" id="arguments"><a class="anchor" href="#arguments"></a>Arguments</h2>
    <table class="ref-arguments">
    <colgroup><col class="name" /><col class="desc" /></colgroup>
    <tr>
      <th>css</th>
      <td><p>A named list of CSS definitions each containing a named list
of CSS property-value pairs, i.e.
<code><a href='https://rdrr.io/r/base/list.html'>list(".class-id" = list("css-property" = "value"))</a></code></p></td>
    </tr>
    <tr>
      <th>outfile</th>
      <td><p>Customized xaringan CSS output file name, default is "xaringan-themer.css"</p></td>
    </tr>
    <tr>
      <th>append</th>
      <td><p>If <code>TRUE</code> output will be appended to <code>outfile</code>; otherwise,
it will overwrite the contents of <code>outfile</code>.</p></td>
    </tr>
    <tr>
      <th>heading</th>
      <td><p>Heading added above extra CSS. Use <code>NULL</code> to disable.</p></td>
    </tr>
    </table>

    <h2 class="hasAnchor" id="css-list"><a class="anchor" href="#css-list"></a>css list</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><a href='https://rdrr.io/r/base/list.html'>list(".class-id" = list("css-property" = "value"))</a></code>.</p>

    <h2 class="hasAnchor" id="examples"><a class="anchor" href="#examples"></a>Examples</h2>
    <pre class="examples"><div class='input'><span class='fu'>style_extra_css</span>(
  <span class='kw'>outfile</span> <span class='kw'>=</span> <span class='fu'><a href='https://rdrr.io/r/base/showConnections.html'>stdout</a></span>(),
  <span class='kw'>css</span> <span class='kw'>=</span> <span class='fu'><a href='https://rdrr.io/r/base/list.html'>list</a></span>(
    <span class='st'>".red"</span> <span class='kw'>=</span> <span class='fu'><a href='https://rdrr.io/r/base/list.html'>list</a></span>(<span class='kw'>color</span> <span class='kw'>=</span> <span class='st'>"red"</span>),
    <span class='st'>".small"</span> <span class='kw'>=</span> <span class='fu'><a href='https://rdrr.io/r/base/list.html'>list</a></span>(<span class='st'>"font-size"</span> <span class='kw'>=</span> <span class='st'>"90%"</span>),
    <span class='st'>".full-width"</span> <span class='kw'>=</span> <span class='fu'><a href='https://rdrr.io/r/base/list.html'>list</a></span>(
      <span class='kw'>display</span> <span class='kw'>=</span> <span class='st'>"flex"</span>,
      <span class='kw'>width</span> <span class='kw'>=</span> <span class='st'>"100%"</span>,
      <span class='kw'>flex</span> <span class='kw'>=</span> <span class='st'>"1 1 auto"</span>
    )
  )
)</div><div class='output co'>#&gt; 
#&gt; 
#&gt; /* Extra CSS */
#&gt; .red {
#&gt;   color: red;
#&gt; }
#&gt; .small {
#&gt;   font-size: 90%;
#&gt; }
#&gt; .full-width {
#&gt;   display: flex;
#&gt;   width: 100%;
#&gt;   flex: 1 1 auto;
#&gt; }</div></pre>
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