Different background image for specific category

Hi all,

I am looking for a way to have all of my posts under the "Front Page" category show up with a different background than my regular blog. I have tried looking up some information on using template styles and I didn't have much luck. Anyone have any insight?

My site is http://www.sbsmediahouse.com/ and I am looking to have the post featured on that section on the front page have a different background than the blog background when you load the full article. The actionsports is a main part of my blog, but I think it may be keep some users away from our site.

Thanks for your help!