New at CSS / Site Review

So i’ve never really done CSS and finish a site revision using CSS for this one nonprofit.
here’s the site http://www.the1010project.org

Here’s what it looks like on my comp (just some examples) : 1 [URL=“http://designlev.com/1010test/2.JPG”]2 [URL=“http://designlev.com/1010test/3.JPG”]3

I’m really afraid of things not looking how they should or things way out of place.
I’d love feedback on parts that don’t work or look right.
Also if anyone has suggestions I’d love em’.

Eric