I succeeded to have the same look in IE and Chrome. The problem with Firefox is that if you define a DIV with a Height at 100%, you cannot have a scrollbar. Because of that, I have to add a lot of javascript to detect the height, see if it is higher than the available height, make the scrollbar appear, recalculate everything and such. Has anyone found a way to have a DIV in Firefox with a Height at 100% with supporting vertical scrollbar?