This site hasn't been updated for a few years. If you're looking for something good and up-to-date, maybe you want to look somewhere else...
This is just a few pages to help a few people do the odd thing or two...
I'd recommend the CSS FAQ and the CSS LAYOUTS as well as the top tips below.
A word of warning : this site looks terrible in older versions of IE.
You can iron this out a bit by starting your stylesheet with this: CSS
* {
margin:0;
padding:0;
}
<!DOCTYPE html>