Yes, I could tell by the massive amounts of inline css that either this was a hack, or you ran it through mailgun's css inliner. But seriously, if I wanted to

Yes, I could tell by the massive amounts of inline css that either this was a hack, or you ran it through mailgun's css inliner. But seriously, if I wanted to add an html tag from 1996 to my site, where is the best place to look for one on the world wide web?