If location and dimensions of boxes are properly worked out, they neatly fit into web page giving it a clean look. Since code associated with table designs are done away with, content of page attains more prominence in code. This makes it easier for search engine spiders to locate actual content of page.

If you have several web pages with similar design, CSS code with these and other details can be put in an external file. This will further shorten code for each page. With CSS lot many improvements can be done in web page design and layout. CSS can also be used for search engine optimization of page.

My experience with CSS has been great and I wonder why it is not used more often. My advice - convert to CSS based design.

Sanjay Johari contributes articles regularly to various ezines. His website contains information, articles, resources, opportunities and more for small business owners and home based business owners. http://www.sanjay-j.com