Hello, my webpage looks fine in FF, Chrome, Safari, and Opera; but not IE.

I've attached a pared-down version of my page.Click to view attachment
I think the problem is with my DIVs and their contents. I have two DIVs, and I want to float:left the first objects in both of them; but once the DIV is closed, I want a clean break with no more floating. I styled my DIVs with overflow:hidden and this fixed the problem in most browsers, but not IE. (The table "Proin" is supposed to appear below the table "primis," not beside it.)

Any advice?

http://css-discuss.incutio.com/wiki/Clearing_Space

Quirks Mode is seldom a good idea either.
http://hsivonen.iki.fi/doctype/

Thank you.

Aha! So, all I had to do was define a width or height for my DIV! Thanks again.