We have been trying to make a website with CSS and I find this to be really hard. But, the best web site that teaches you about CSS I find is
www.w3schools.com . This website teaches you all the codes you need to know for whatever your trying to make. Whether it's the backgound or a list you want it will give you the code to do it. The website here is a video of how to work dreamwever on
http://video.google.com its not the best video to show you how to work dreamweaver but its the best i could find.