I'm working on the site of a friend, and he wants the navbar to have little W3C CSS rollover buttons. The buttons need to be 100 pixels wide, but the anchor element doesn't have a width property, since it's an inline element. Thus, I put the links inside divisions, and set the width property there.
Now, divisions don't have a hover pseudo-class, and so the links have to do the rollover. But since the links don't fill the entire box, only the text lights up, and not the whole box.