I designed a web site a while back that is no longer in use. It had a curved horizontal navigation menu. The rollover was achieved using CSS and moving the image on hover. There was one issue that concerned me, but I couldn’t find or, rather, didn’t look very hard for the solution: in the focus and active states, the image outline would show. It was distracting. I just discovered that if I had put the rule “outline:none;” on the focus and active states, the dotted lines would disappear. Perhaps I should reread my CSS book.