<!DOCTYPE HTML>
<html>
<head>
  <title>Spanning cell has no specified width</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 }

    td.lowPct    { width: 10% }
    td.medPct    { width: 40% }
    td.hiPct     { width: 50% }
    td.specWidth { width: 50px }
  </style>
</head>
<body>
  <h2>No third column</h2>
  <table cellpadding="0" cellspacing="0">
    <tr>
      <td colspan="2" class="aqua"></td>
    </tr><tr>
      <td class="lime specWidth"></td>
      <td class="blue"></td>
    </tr>
  </table>

  <h2>Third column with low percent width</h2>
  <table cellpadding="0" cellspacing="0">
    <tr>
      <td colspan="2" class="aqua"></td>
      <td class="yellow lowPct"></td>
    </tr><tr>
      <td class="lime specWidth"></td>
      <td class="blue"></td>
      <td class="pink lowPct"></td>
    </tr>
  </table>

  <h2>Third column with medium percent width</h2>
  <table cellpadding="0" cellspacing="0">
    <tr>
      <td colspan="2" class="aqua"></td>
      <td class="yellow medPct"></td>
    </tr><tr>
      <td class="lime specWidth"></td>
      <td class="blue"></td>
      <td class="pink medPct"></td>
    </tr>
  </table>

  <h2>Third column with preferred width</h2>
  <table cellpadding="0" cellspacing="0">
    <tr>
      <td colspan="2" class="aqua"></td>
      <td class="yellow specWidth"></td>
    </tr><tr>
      <td class="lime specWidth"></td>
      <td class="blue"></td>
      <td class="pink specWidth"></td>
    </tr>
  </table>
</body>
</html>