olid gray;
    margin: 1em;
    float: left;
  }
  td {
    width: 1em;
    height: 1em;
  }

  .navy { background: navy}
  .blue { background: blue }
  .aqua { background: aqua }
  .teal { background: teal }
</style>

<p>Test passes if the following patterned boxes all look identical.

<table class="test">
  <col span=2 class="navy">
  <col class="blue">
  <col span=2 class="aqua">
  <tr><td><td><td><td><td>
</table>
<table class="test">
  <colgroup span=2 class="navy"></colgroup>
  <colgroup>
    <col cla