Nav Bar Freezes Theme?

[AlexC]

I'm having a bit of an oddity concerning the nav bar. I was editing colors and sizes and things, and then suddenly out of nowhere, all of the things above the nav bar (banner links, a twitter feed box, a bunch of links and some text) became "frozen" for lack of better word. I couldn't click or highlight or anything above it. This doesn't include the sidebar which isn't above the nav bar since it's to the side.

The only place this isn't happening is on the myadopts, member list, and profile page. (possibly other pages but I haven't found them yet) On here, the footer moves into the main content div and the sidebar links (meaning the "edit account", "see my adoptables" links) become enlarged and almost appear to change font. But everything unfreezes and I can click things and scroll in the twitter box and everything again.

It seems to also vary if you're not logged in (note, you can't log back in if you're not on a page with enlarged font). The myadopts/member list pages is fine again, but the profile page is still weird.

I've got no idea how to fix it, or what's even wrong. Any help?

http://ratties.x10.mx/profile.php?user=Bea - Example of enlarged text/wonky footer.