black only help yes i did change css

Hi guys i changed the css
but on foxfire my site is white
on the rest - explorer, opera and others its black
i cleared the coche and nothing
what do i do?
the site is
Fresh Metropolis Network - Share Your Videos
have a ton to do with it but i want to fix this problem first

Your site is black when I look at it (using Firefox). Perhaps your browser didn't clear it's cache.

thank you it was fixed