CSS or Cascading Style Sheets has opened up tremendous possibilities for improving web site designs, web page layouts and adding new features. The HTML code can be made shorter, cleaner and simpler by CSS resulting in faster loading of web pages, and making them more accessible to search engines.
If you look at a traditionally designed web page, you are likely to find number of tables in the layout. Tables were earlier used only for displaying information in a tabular form. But
Small business website design soon started using tables for other applications such as showing images, graphics and other decorations.
Each web page was almost fully covered with tables and many tables were nested inside other tables. As they tried to add more features the design became more and more complicated resulting in longer loading times. It also took lot of time to "adjust" the tables on the page to make it acceptable.
It was not an easy task to redesign all the pages using CSS. But once they started, the improvements were more than they had bargained for. The design became simpler; the appearance improved and loading time came down considerably. The code looked real clean. Most of "td" and "tr" tags were gone