swa66 - 1:33 pm on Apr 12, 2013 (gmt 0) [edited by: tedster at 9:34 pm (utc) on Apr 12, 2013]
It does not belong in HTML and never should have been added by those browsers that do support it.
It's non-conforming feature as far as html5 goes, that "must not be used by authors".
See 11.2 here: [w3.org...] or here [whatwg.org...]
[edit reason] fix the link [/edit]
[edited by: tedster at 9:34 pm (utc) on Apr 12, 2013]