In etwa so...
<table style="border-collapse:separate; border:1px solid #CCCCCC;">
<tr>
<td style="border:1px solid #CCCCCC">Haus</td>
<td></td>
<td style="border:1px solid #CCCCCC">Boot</td>
</tr>
<tr>
<td style="border:1px solid #CCCCCC">Haus</td>
<td style="border:1px solid #CCCCCC">Auto</td>
<td style="border:1px solid #CCCCCC">Boot</td>
</tr>
</table>
...?
Gruß!