Web Design: w3c standards
These pages provide an overview of how standards influence web design. Starting with a review of the four principles of a web site for an organisation and the problems associated with how operating systems and browsers display pages.
Some common errors will be described and suggestions as to how w3c's validation service can assist in not only identifying them but also fixing some too.
The advantages of using CSS stylesheets will be illustrated and you will find lots of useful links to other resources for further study.