his guide will attempt to take you step by step, through the process of creating a fully functioning CSS layout. I will try my best to explain the concepts behind each step, but a lot of the time other people have already covered these things better than
Embed a javascript version of Firebug in your webpage so you can debug it in Safari, OmniWeb, IE6, IE7, Opera, IE6 again, Safari again, IE6 again, IE6 again...