title: Wordpress custom class not in the source code
body: <p>I have a problem with wordpress.</p>
  
  <p>I have a post with a simple 
  <code>&lt;div class"codeTutoriel_intermediaire"&gt;Intermediaire&lt;/div&gt;</code> 
  to make a test. </p>
  
  <p>When I look at the source code in chrome, I don't see the class <code>codeTutoriel_intermediaire</code> to the div. So the css does not work because the class is not there.  </p>
  
  <p>How can I solve the problem?</p>