title: css hide div if div has no child with class
body: <p>Is it possible to hide a div with css if the div has no child div's with a specific class name?</p>
  
  <pre><code>&lt;div class="parent"&gt;
   This div must be hidden
  &lt;/div&gt;
  
  &lt;div class="parent"&gt;
   This div must be visible
   &lt;div class="child"&gt;
   child div
   &lt;/div&gt;
  &lt;/div&gt;
  </code></pre>
  
  <p>If it's not possible with CSS, maybe with javascript or jQuery?</p>