The Beauty of CSS
This site is designed to give you some ideas about what changing the styling could do for your site — just by attaching different CSS style sheets. The real beauty of using linked style sheets is the ease with which you can change your entire site without changing any HTML. Each version of this site comes from the same HTML; the only difference — the style sheets they use. Click the different versions and take a look at the different "looks". Want to see what it looks like any style sheet?
If you look at the source code you'll see no tables in the layout. The biggest benefit of table free layouts is they are much easier for search engines to analyze correctly. Another reasons is the speed with which they load. The quicker your pages load the less chance you have of the customer navigating away from your site before they see what you have to offer!
These pages should look great regardless of the browser being used. Gone are the days when your site could simply say "Best Viewed using Internet Explorer". November 2009 statistics show that over 60% of web users now use Firefox or one of the other browsers.
Kc's Kidz is a very basic site designed just to give you some ideas of what a difference a little color and formatting can make.