Changing Top Menu Links Colors

Hello Everyone,

I am running D7.1.1 - I am trying to change the color of the top Menu, but I can't find which CSS that needs to be modified.

when I inspected the link using the firebug utility, please see attached screenshot.  I see this CSS:
http://demo.boonex.com/gzip_loader.php?file=bx_templ_css_d6d53c91a3f60568777f1e7d35cbb91e.css

which belongs to the [ cache_public ] - But, where is the actual CSS that I need to modify for the links on Top Menu ?

Thank you for your assistance !

You are seeing cache files because you have dolphins caching turned on. Shut off dolphins caching then firebug will show you the real files.