Validation....

What is Validation and Why is it Important?

WEBstandards
Doctypes
Separation of Content Presentation and Interaction
-Accessibility

• by separating interaction code (JavaScript) from the HTML/XHTML code, the web site will work without JavaScript if it is built on a solid ground
• correct semantics-easier to view page without CSS
  

The Meaning of Semantics by Molly Holzschlag

• bad habits
  
• how to create lists in html
• correct use of heading tag h1 h2 etc (meaning rather than appearance)
• blockquote
• table
• address
• d1
• "For a great resource on semantic markup, check out Dan Cederholm's excellent site, SimpleBits. Be sure to read the comments in the SimpleQuiz sections and look under the hood to see fine examples of Cederholm's meaningful markup."

other articles by Molly