<!DOCTYPE html>
<html>
<head>
<title>Spanning columns</title>
</head>
<body>
<table border="1">
<caption>Spanning columns using the colspan attribute</caption>
<tr>
<td bgcolor="red" width="100" height="100"> </td>
<td bgcolor="gray" width="100" height="100"> </td>
<td bgcolor="blue" width="100" height="100"> </td>
<td bgcolor="tan" width="100" height="100"> </td>
</tr>
<tr>
<td bgcolor="tan" width="100" height="100"> </td>
<td bgcolor="gray" colspan="2" > </td>
<td bgcolor="blue" width="100" height="100"> </td>
</tr>
<tr>
<td bgcolor="blue" rowspan="2" > </td>
<td bgcolor="tan" width="100" height="100"> </td>
<td bgcolor="red" colspan="2" rowspan="2" > </td>
</tr>
<tr>
<td bgcolor="gray" width="100" height="100"> </td>
</tr>
</table>
</body>
</html>