<table style="border-collapse:collapse;font-family:sans-serif;font-size:1em">
<thead>
<tr><th style="text-align:right">A</th> <th style="text-align:right">B</th></tr>
</thead>
<tbody>
<tr><td style="text-align:right">1</td> <td style="text-align:right">2</td></tr>
<tr><td style="text-align:right">3</td> <td style="text-align:right">4</td></tr>
</tbody>
</table>