margin is not rendered

[Urs Rothenhäusler]

Hello,

I don't know why the margin-property is not rendered/interpreted (I use
N7/IE6), e.g.:

<table>
<tr style="margin-bottom:50pt;">
<td>first column</td>
</tr>
<tr>
<td>end</td>
</tr>
</table>

Thanks for help/explanation!
Urs