HTML5 sub nav semantics

Question

A quick question re: HTML5 nav, specifically that of sub navigation (from a semantic point of view).

I have

in the header for the main menu. Dow

Answer 1

This may be an old question, but there is a better answer now:

You can label each navigation section implicitly using headings, and explicitly use WAI-ARIA attributes:

  
Main menu
  


...

  
Local pages
  

For user-agents like screenreaders, they can report that as "Local pages, navigation" (although they vary in how it's reported).

Read more on a W3C wiki page on using labelledby.