Drupal 7: HTML5 and RDFa
Lin Clark erklärt einige Fallstricke und Probleme beim Versuch HTML5 und RDFa beim Druapl 7 Theming zu verbinden.
Validation is still tricky. Some validators can handle microdata attributes but not RDFa, some can’t handle either. The problem isn’t that HTML+RDFa is any less valid than any of the other HMTL 5 drafts, it’s that the validators haven’t been updated yet.(…) The fact remains though… it is unfortunately quite complicated to figure out just how to validate an HTML5+RDFa document at this point. While I’ve heard a number of suggestions for workarounds, none has worked for me yet.

