title: Override CSS table formatting
body: <p>I use the following CSS to apply a top border to the last-child row of various tables:</p>
  
  <pre><code>.mytabs tr:last-child {
  border-top:1px solid #000;
  font-weight:bold;}
  </code></pre>
  
  <p>Now what I need to do is to override this style for one particular table.  How can I override this style in one specific instance?  Thanks.</p>