Thread:Dopp/@comment-4583259-20120325042518/@comment-1393830-20120326142052

Global.css is a css file located here on Central that affects all wikis you go to in all skins.

Wikia.css is a local css file on any wiki that affects only that wiki in the wikia skin.

Monobook.css is a local css file that affects only the wiki it is on in the monobook skin.

The same holds true for js files.