If you are just getting started with CSS, a great way to begin is by downloading a template and playing around with things and seeing what happens. You have to be careful though, some templates are so overly complicated that you might just drown while sifting through everything.
Don't worry though, we got you covered. Here is a entirely CSS template for a simple website that you can download, tweak, revamp, whatever you want! We're calling it Homebase, because it can be a good starting place for any website. Even if you are a master coder, why waste your time with simple setup work?
Anywho, check it out and have fun!
Update: Hello. Chris from 2014 here. This demo is totally bad. You probably would be better off googling around and finding something more modern. I'm going to leave it here though because that's just kinda good for the internet.