Other benefits to using Web standards

(1)Reducing dependency on any one developer
A common challenge for web developers when assuming management of existing sites is the code written by other developers with poor HTML code quality. Because standards are very well documented, another person taking over some standard-compliant code can hit the ground running - and will not need to become familiar with the previous developer's coding practices.

(2)Benefits to web site visitors
Thanks to accessibility, faster loading web pages, and compatibility with more browsers, visitors are more likely to appreciate your service and come back later.

(3)Increase Website Traffic -Better search engine ranking
Separating presentation from content increases the information/markup ratio, making CSS-based documents more pertinent with regard to the search terms, which makes them rank higher in search results.

(4)Compatible with newer browsers
More and more browsers, other than Internet Explorer for Windows, are used to surf the web. However, testing each web page in every configuration is impossible. Coding to standards is then the only practical solution.