Code Prettify using google-code-prettify

<div id="organization">
  <div id="department">
    <div id="group">
      <div id="team">
        <div id="taskforce">
          <div id="member" />
        </div> <!-- taskforce -->
      </div> <!-- team -->
    </div> <!-- group -->
  </div> <!-- department -->
</div> <!-- organization -->

With line numbers...

<div id="organization">
  <div id="department">
    <div id="group">
      <div id="team">
        <div id="taskforce">
          <div id="member" />
        </div> <!-- taskforce -->
      </div> <!-- team -->
    </div> <!-- group -->
  </div> <!-- department -->
</div> <!-- organization -->