Forum:CSS Gone Wrong

Hey, I recently wacked up my wiki's mainpage background. (its orange and says welcome) I want to set it back to the blue. I got rid of the css behind it, and let it refresh overnight, but it's still there!! Can anyone help me with this issue? Thanks! A n  r  &bull; 1/30/12 23:12 (UTC)
 * Can't see what you're experiencing. As of right now, the wiki background is blue with some neat circles. Perhaps purge your cache?— subtank  ( 7alk ) 23:18, January 30, 2012 (UTC)

A n  r  &bull; 1/31/12 01:31 (UTC)
 * Try going to theme designer in admin tools
 * Toadette I am Team Toadette!  Talk to me  23:19, January 30, 2012 (UTC)
 * Theme designer is a feature limited only to administrators and bureaucrats.— subtank  ( 7alk ) 23:23, January 30, 2012 (UTC)
 * I know, I'm founder. Anyhow, thanks!!! I'll try it... I'll let you know if it works!! :D
 * IT WORKED!!! Thanks, I added ?action=purge to the url on the mainpage. It worked! Thanks a million! I appreciate it... really I do! Thanks again, A  n  r  &bull; 1/31/12 01:33 (UTC)