I'm not sure how to correct for these size difference. This is sort of my first real attempt to not use tables.
IE: adds border to the inside
FF: adds border to the outside (making component display larger)
IE: adds padding inside the component.
(component width of 10 + 2 padding yields component size of 10 with only 6 visible)
FF: expands component size relative to padding. (causes larger display)
(component width of 10 + 2 padding yields component size of 14)
Here's the site:
The CSS file: