CSS - Cascading Style Sheets

I read a great article last night about CSS. I have been using CSS only a little in the last little while and I need to use it more. It seems to be difficult to understand. The article was great and gave me some great ideas including help on an issue I had already struggled with. The article is at http://sys-con.com/story/?storyid=44901&DE=1.

div.clear {
clear: both;
height: 0;
margin: 0;
line-height: 0;
font-size: 1px;
}

This has to do with making the parent element expand to contain float. Anyway check out the article for more info. Great stuff. I now longer have the magazine because my youngest child spilled a large glass of milk all over the table which had the magazine on it. Thank goodness for the web site.