its-version in HTML

Hello everyone,
Quick question about the HTML equivalent of the its:version attribute. Does
it exist? I don't see any explicit use of an "its-version" attribute in the
HTML examples in the spec, and "its-version" in the <html> element yields
an error from the validator (http://validator.w3.org/nu/).
Sorry if I missed a mention of it somewhere.
Nathan

Received on Thursday, 22 August 2013 01:20:54 UTC