> layout, left column for nav links, right column for content. I would like > to make the content column always be at least as tall as the nav column. here http://www.w3.org/TR/CSS2/visudet.html and especially this part http://www.w3.org/TR/CSS2/visudet.html#min-max-heights you'll find what you need. so specify fixed or percentage height for nav, and then use same value as min-height for content. .kasimir