【td】
<!DOCTYPE html>
<html>
<head>
<style type='text/css'>
#leftbutton {
float: left;
}
#rightbutton {
float: right;
}
</style>
</head>
<body>
<table>
<tr>
<td>short text</td>
<td>long long long text</td>
<td>short text</td>
</tr>
<tr>
<td colspan='3'>
<button id='leftbutton'>Left</button>
<button id='rightbutton'>Right</button>
</td>
</tr>
</table>
</body>
</html>
