There is a difference between how Firefox and IE render pages. One includes all of the margins, borders, and padding within the declared box size of the item. The other does not include them, but adds them to the declared size of the item.
This means that nothing that you define as a rigid size works the same on both browsers. (And remember that your rendering will completely fall apart with a different screen resolution.)
MidiMagic
Nearly a Senior Poster
3,319 posts since Jan 2007
Reputation Points: 730
Solved Threads: 182