http://tøffing.no/test/

theres some strange problem, seems like 2px margin / padding is added on the black pic in the middle and the "live chat" pic on the right.

problem is in IE and Firefox, but in Opera it renders fine.

can anyone see what the problem is?

if you want no margins or paddings you have to force it by setting both to 0.
Don't assume they will default to 0.

I see nothing wrong with FF for Mac and I can't check IE because your domain has an illegal character. Doug's right that you should first try to adding padding: 0px and margin: 0px to the classes of those two.

Your CSS also should be in an external stylesheet.

i found the error!

i was using those pictures as LINKS, and then IE and FF added an invisible BORDER around those pictures.

solved by

* {
border:0;
padding:0;
margin:0;
}

I would do the following code instead:

img {
border: none;
}