Using a table in website design layouts makes the page confusing because most layout tables use many table features such as copen, lilination, and Nested Tables. Design tables can be easy, maintenance is difficult. Most screen readers will see the order in HTML, and interrupt the content of the layout at the table table below from left to right and up.
It’s still more excited, page layouts and HTML5 supporters avoid the table in HTML 4.01. Presentations are kept out of separate HTML, while CSS is used, the maintenance of tables is a bit easier. The flexibility of the pages that blocks the tabs affects the SEO.