Okay, long title short story. I've got a table structured like this:
<table>
<thead>
<tr><th>longer Heading with a width of 100%</th></tr>
</thead>
<tbody>
<tr><td>cell 1</td><td>cell 2</tr>
<tr><td>cell 3</td><td>cell 4</tr>
</tbody>
</table>
And I'd like the th to be full width and not change the width of the table cells. I guess there's some CSS display property that would make this possible but I haven't found a working solution yet.
<table>
<thead>
<tr><th colspan="2">longer Heading with a width of 100%</th></tr>
</thead>
<tbody>
<tr><td>cell 1</td><td>cell 2 </td></tr>
<tr><td>cell 3</td><td>cell 4 </td></tr>
</tbody>
use of colspan
will do the trick for you