HTML has strict implementation requirements and loose authoring requirements. I recall that it is a goal of HTML that a significant percentage of "anyone" can c

HTML has strict implementation requirements and loose authoring requirements. I recall that it is a goal of HTML that a significant percentage of "anyone" can create useable documents with it, but the closest I can come to a citation at the moment is this: http://wiki.whatwg.org/wiki/FAQ#Why_does_this_new_HTML_spec_legitimise_tag_soup.3F http://wiki.whatwg.org/wiki/FAQ#Why_does_this_new_HTML_spec_...