Unfortunately that's not in-keeping with the backwards compatible nature of
HTML5, if we were to specify that as the parsing approach from now on it would
cause a major inconvenience to anyone actually trying to use that feature when
some browsers have picked it up and others haven't.
The
Starting a new subject on this to keep the email threads more clear:
Suggestion is that the following should be possible,
this would allow body to act as if it was a main.
!doctype html
html
head
titleheader and footer outside body/title
style
body {border:1em solid #7f2424;}
header {border:1em