What about:
<table summary="xx" style="width:800px"> <col style="width:100px"/> <col style="width:50%"/> <col style="width:2*"/> <col style="width:3*"/> <tr><td>alpha</td><th>beta</th><td>gamma</td><th>delta</th></tr> </table>
| alpha | beta | gamma | delta |
|---|
Column widths should be 100px, 400px, 120px, 180px?
Incorrect in all browsers?
NO: proportional values not defined in CSS