Forum:How to I make my own CSS page for myself and only me?

So how do I do it? I want the text on all pages to be about the size of the text in the Source editor, and that's about it. I may think of more though. Oh and sorry for not doing this correctly, I couldn't find the page to post forums in. D:
 * Edit Special:MyPage/global.css. To customize CSS on just one wiki, open Special:MyPage/wikia.css, Special:MyPage/common.css, or Special:MyPage/monobook.css on that wiki. TK-999 (talk) 18:20, November 20, 2012 (UTC)


 * I know that much, but what would the codes and stuff be? D:-- Ceadeus Slayer  18:28, November 20, 2012 (UTC)