How can I change the background color of my Nice_Menu

My be I am jsut missing it but I can find the place to change the color of my nice menus I can get the borders to change but not the color of the middle part. I have changed ever color in the nice_menu.css and played a little in the style.css. I also used firebug but it did not tell me. Here is the site http://www.fansportsunion.com/
can some one point me in the right area?
Also how can I change the color of the font in the nice menu?