How to set fixed table border width for variable cells width

[th3d]

I have several RadiobuttonLists and all the label texts for list items have different widths. E.g.RadiobuttonList #1\[code\](o) this is a really long label [textbox](o) this is another really long label [textbox]\[/code\]RadiobuttonList #2\[code\](o) short label [textbox](o) short [textbox]\[/code\]As you can see, the textboxes naturally set their place within fixed position of longest label for each radiobuttonlist set. Which is what I want. (The radiobuttonlist and textboxes each sit in \[code\]<td>\[/code\] in \[code\]<tables>\[/code\].)However, I have a border around each tables on all 4 sides (so imagine the light blue background that sits under my examples above to be the border).I need all the tables to be of same width i.e. 800px in width.Since I do not know the width of the first 2 \[code\]<td>\[/code\] how do I ensure they add up to 800px?Any ideas?