title: Coloring a text part doesn't work (Python 3 + Sphinx html)
body: <p>I tried every solution i found but none of it works. Maybe cause of differences in Python 2 or 3, and/or older Sphinx version. This is what I have:</p>
  <ol>
  <li>A Sphinx project with a seperated build and source directory</li>
  <li>A file called custom.css which I placed in source/_static. Content:</li>
  </ol>
  <pre><code>    .blue {
          parent: bodytext;
          textColor: blue;
      }
  </code></pre>
  <ol start="3">
  <li><p>I've edited my conf.py and added <code>html_css_files = ['custom.css']</code> below <code>html_static_path = ['_static']</code></p>
  </li>
  <li><p>I've added <code>.. role:: blue</code> at the top of my *.rst document.</p>
  </li>
  <li><p>I've edited the file itself and wrote: This is a sentence with a :blue:`blue` word.</p>
  </li>
  </ol>
  <p>When I render my project the html source code contains: <code>This is a sentence with a &lt;span class=&quot;blue&quot;&gt;blue&lt;/span&gt;</code> word.</p>
  <p>All good except the fact the word isn't blue at all. It has the same color as the rest.</p>
  <p>What am I missing?</p>