To add to the x-small, ems or % discussion: http://www.alistapart.com/stories/fear4/ Seems to be pretty clear: use pixels (and lose the ability for your users to use the standard resizing) Or don't specify sizes at all. While http://www.alistapart.com/stories/sizematters/ Gives you various tricks to make sure each browser (nn4, ie5, ...) gets a different style sheet to suite its interpretation of the keywords/sizes. Maurice