Re: Underline element.

Tom Morris wrote:
>  Unless HTML 5 starts supporting some kind of embedded RDF solution
>  (RDFa, head/@profile for GRDDL), I will not use it and continue to
>  publish HTML 4 and XHTML 1.0/1.1 instead - and suggest to people that
>  they avoid publishing HTML 5.

I don’t know why you wouldn’t be able to use those technologies even if 
they weren’t requirements of HTML 5, barring UA support, of course. For 
RDFa, you could just extend the language with new attributes since 
there’s no technical limitation (i.e., there’s no DTD). For GRDDL, you 
could do the same thing; in a namespaced XML document, you would have 
the additional option of using the profile attribute from the XHTML 
namespace.

— Patrick Garies