Forum:CSS Skins

On the Gaming Wiki - I've found instructions containing a list of Monobook skins, I've already got one in my monobook css file: however I've transferred the coding to my global.css file and it's not showing up on any wiki's could anyone tell me what have I done wrong. Dark  Obsidian  21:31, 27 November 2008 (UTC)
 * The current skin applied from my preferences is the standard MonoBook skin. Dark  Obsidian   21:34, 27 November 2008 (UTC)