Using tables for layout for the whole page or just for a part of it such as header, footer, menus has some drawbacks:

• it increases the page code and makes the page load slower

• it is not good for SEO (Search Engine Optimisation) and lowers the website`s ranking  and position in search engine results

• it decreases accessibility - users with disabilities and viewers using cell phones and PDAs may not be able to access the site

 This problems can be avoided by using CSS...