Have been practicing CSS layouts Here (http://uk.geocities.com/darrenvalley/csspage.html) and tried to get the page validated at W3schools in order to see where i have made any mistakes but i am informed: Please, validate your XML document first?
Could someone please explain what i'm doing wrong. Thanks all. TC

Google Search (http://www.google.com/search?hl=en&q=css+validation&btnG=Google+Search)

www.htmlhelp.com has a CSS validator that doesn't check to see if your HTML is valid first.