<!DOCTYPE html>
<html>
<head>
<style>
table, th, td { border: 1px solid black; border-collapse: collapse;
}
</style>
</head>
<body>
<h2>A header that spans two columns</h2>
<p>Use the colspan attribute to have a header span over multiple columns.</p>
<table style="width:100%"> <tr> <th colspan="2">Name</th> <th>Age</th> </tr> <tr> <td>Jill</td> <td>Smith</td> <td>50</td> </tr> <tr> <td>Eve</td> <td>Jackson</td> <td>94</td> </tr>
</table>
</body>
</html>