XHTML 1.1 is a minor update to the original XHTML specification, in which previously deprecated elements were removed and XHTML 1.0 was modularized into a collection of abstract modules that provide specific types of functionality.
XHTML 1.1 made the following changes from XHTML 1.0:
- On the a and map elements, the name attribute has been removed in favor of the id attribute
- The "ruby" collection of elements has been added