<!DOCTYPE HTML>
<html>
<head>
  <title>Reference Case</title>
  <style>
    table     { width: 500px;      }
    td        { height: 2em;       }
    td.aqua   { background: aqua   }
    td.lime   { background: lime   }
    td.blue   { background: blue   }
    td.pink   { background: pink   }
    td.yellow { background: yellow }
  </style>
</head>
<body>
  <h2>No third column</h2>
  <table cellpadding="0" cellspacing="0">
    <tr>
      <td class="aqua"></td>
      <td class="aqua"></td>
    </tr><tr>
      <td class="lime" style="width: 50px"></td>
      <td class="blue" style="width: 450px"></td>
    </tr>
  </table>

  <h2>Third column with low percent width</h2>
  <table cellpadding="0" cellspacing="0">
    <tr>
      <td class="aqua"></td>
      <td class="aqua"></td>
      <td class="yellow"></td>
    </tr><tr>
      <td class="lime" style="width: 50px"></td>
      <td class="blue" style="width: 400px"></td>
      <td class="pink" style="width: 50px"></td>
    </tr>
  </table>

  <h2>Third column with medium percent width</h2>
  <table cellpadding="0" cellspacing="0">
    <tr>
      <td class="aqua"></td>
      <td class="aqua"></td>
      <td class="yellow"></td>
    </tr><tr>
      <td class="lime" style="width: 50px"></td>
      <td class="blue" style="width: 250px"></td>
      <td class="pink" style="width: 200px"></td>
    </tr>
  </table>

  <h2>Third column with preferred width</h2>
  <table cellpadding="0" cellspacing="0">
    <tr>
      <td class="aqua"></td>
      <td class="aqua"></td>
      <td class="yellow"></td>
    </tr><tr>
      <td class="lime" style="width: 50px"></td>
      <td class="blue" style="width: 400px"></td>
      <td class="pink" style="width: 50px"></td>
    </tr>
  </table>
</body>
</html>