Amazon has announced HTML5 Support in Kindle Format 8 

Amazon has announced an update to the Kindle file format - Kindle Format 8 (KF8) - including many HTML5 tags and CSS attributes.

As showcased on Kindle Fire, KF8 enables publishers to create great-looking books in categories that require rich formatting and design such as children’s picture books, comics & graphic novels, technical & engineering books and cookbooks. Kindle Format 8 replaces the Mobi format and adds over 150 new formatting capabilities, including:

  • Scalable Vector Graphic
  • CSS3 support
  • Fixed layouts
  • Embedded fonts
  • Drop caps
  • Floating elements
  • Text on background images
  • Numbered and bulleted lists
  • and more!

The full list of new tags and such can be found here.