User blog:TrevorTheEditor/Need some help with .css

Just wanted to ask a quick question to get some advice, since I don't know how to do this. I have my own wiki (Country Designer Wiki , U.S. example page ), a wiki I'm starting to work on. I want to write the .css for it, but I don't know how it works or where to start. If you would like to help, it would be much appreciated from me (I will not force you to help if you do not want to), thank you! Wrote with love, TrevorTheEditor.