Use colspan to span columns to several columns
Description
To span cell to multiple columns, you use the colspan attribute.
The values assigned to the colspan must be integers.
You also have to remove the cell elements that the expanded cell will cover.
Example
<!DOCTYPE HTML>
<html>
<head>
</head><!-- w w w . j av a 2 s . c om-->
<body>
<table border='1'>
<thead>
<tr>
<th>Rank</th>
<th>Name</th>
<th>Color</th>
<th colspan="2">Size & Votes</th>
</tr>
</thead>
<tbody>
<tr>
<th>2nd Favorite:</th>
<td>HTML</td>
<td>HTML</td>
<td>Oracle</td>
<td>MySQL</td>
</tr>
<tr>
<th>3rd Favorite:</th>
<td>XML</td>
<td colspan="2" rowspan="2">This is a test.</td>
<td>203</td>
</tr>
<tr>
<td>A</td>
<td>B</td>
<td>C</td>
</tr>
</tbody>
<tfoot>
<tr>
<th colspan="5">© 2011 java2s.com Enterprises</th>
</tr>
</tfoot>
</table>
</body>
</html>