title: TD Hover will not work
body: <p>I have the following CSS:</p>
  
  <pre><code>        td: hover {
          background-color:red;
          }
  
  
  
          td {
          cursor: pointer;
          background-color: rgb(150,150,150);
          }
  </code></pre>
  
  <p>and my HTML is just:</p>
  
  <pre><code>&lt;table&gt;
  &lt;tr&gt;&lt;td&gt; &lt;/td&gt;&lt;/tr&gt;
  &lt;/table&gt;
  </code></pre>
  
  <p>I can't get the <code>hover</code> to work. Why is that?</p>