Forum Moderators: not2easy
You absolutely position each menu list under each category and hide them.
for each list item on the top menu, set a :hover property to "unhide" the hidden menu, giving it the illusion that it's popping up.
If you want support for browsers that don't support the "hover class for everything, put some <a> tags in the top menu list as well.
That's the basic concept, at least. I don't have any code handy to show you how: sorry.
Anyone else have some tips/corrections and some sample code?
T