Category Menu Bar vertical in IE, horizontal in Firefox
 

I messed something up somewhere. I am trying to have the menu bar centered and horizontal. No content added yet, but feel free to take a look. nationundergod.net

I don't see a vertical menu, just Firefox not wrapping the menu, while Safari and IE do wrap

Looks like all except Firefox are being thrown off by font-family: arial, ariel, sans-serif;

and not really rendering it in Arial thus the different (slightly bigger) font-size and the wrapping