||This specification defines the 2nd edition of the 5th major version, first minor revision
of the core language of the World Wide Web: the Hypertext Markup Language (HTML).
In this version, a significant error with HTML 5.1 has been rectified, as noted in
the Errata corrected section. Meanwhile, new features continue to be introduced to
help Web application authors, new elements continue to be introduced based on research
into prevailing authoring practices, and special attention continues to be given to
defining clear conformance criteria for user agents in an effort to improve interoperability
in the development of HTML 5.2.