Css not applying to inner pages on wordpress

I’m not sure if this an issue with css or with wordpress so i thought i would see if anybody has any ideas. i have a site that i have built with wordpress and im using @fontface which is working fine except that when i go a deeper section of the site,the fontface is completely ignored. i can change the css to Arial black and it is recognized but not the @fontface i have for applied. and what is weird is the issue is only in Firefox my version is 3.6.12. if the site is viewed in all other browsers even IE it looks correct. If you view the links below in Firefox you will se what im talking about inregards to the menu

http://culturefreshlife.com/content/ everything is fine on this page

but if you go here, the @fontface is ignored.
http://www.culturefreshlife.com/content/store/guys/guys-tees

I’m completely lost on this one… any help would be great. trying to get this launched by Monday.

Mike