There looks like a lot of content on there, but I'd go crazy before gleaning any of it with that pointer. Please make it stop! Was this a joke post, an example of poor design, or a serious link to some beefy content?
It's a joke page, just < http://www.whatwg.org/html > with ugly CSS/JS. The point's to make fun of marketing weasels trying to confuse HTML 5, CSS 3, JS 1.8.5 , and other related technologies.