title: exceptions/conditions in classes
body: <p>How can you make conditions in classes?</p>
  
  <pre><code>tr.list_row2:hover &gt; td &gt; div {
  /* proporties */
  }
  </code></pre>
  
  <p>How can you make an exception for <code>tr.list_row2:hover &gt; td &gt; div.test</code>? The class doesn't have to be added if the element has the class <code>div.test</code></p>