title: How can I change text justification to 'justify' for the ReadTheDocs Sphinx theme?
body: <p>I'm writing a new documentation for my project in reST. The documentation is rendered with Sphinx on ReadTheDocs. I already downloaded the ReadTheDocs theme as a git submodule into my repositories <code>docs/source/_themes</code> folder, so I can modify some of the templates or CSS settings.</p>
  
  <p>I would like to change the text justification for big paragraphs from <em>ragged right</em> to <em>fully justified</em>.<br>
  Where can I change his in the hundreds of lines of CSS code?</p>
  
  <p><strong>Document structure:</strong></p>
  
  <pre><code>...
  &lt;div class="section" id="basic-2-flip-flop-synchronizer"&gt;
    &lt;h2&gt;Basic 2 Flip-Flop Synchronizer&lt;/h2&gt;
    &lt;p&gt;The 2 flip-flop ....
  
    &lt;/p&gt;
  &lt;/div&gt;
  </code></pre>
  
  <p><strong>CSS code to include or replace with:</strong></p>
  
  <pre><code>text-align:justify;
  </code></pre>
  
  <p><em>I used CSS 10 years ago, but I'm not really up-to-date on the new CSS selectors ...</em></p>