I feel kind of silly asking that honestly. but i don't know
i was asked to revamp a site recently, and optimize for SE's (which i reluctantly agreed to do). should i code as HTML5?
i did a quick survery of some big sites like CNN.com and more ( i can't remember) and it seemed like they made the <!doctype html> declaration but then i didn't see any new HTML5 elements like
this is not for mobile devices per se.
any advice would be appreciated thanks.