centered floating div
I've got a quick question. I need to make a div that holds a swf file (with a transparent background) of the site's navigation. This navigation has a drop down menu, so it's supposed to cover part of the site. How do I overlap a div, centered on the page? Right now I've got: margin-left: auto;
to keep it centered, but I can't get it to overlap (by about 100 pixels).