It looks a lot like the stuff I produced a while back with an rnn. I just fed the rnn raw web pages for a giggle. It does surprisingly well, often managing to close braces correctly. It really goes to show how good the browsers are at dealing with junk html. I was thinking about trying to jointly train the html and an image of the webpage, in the vague hope that you might be able to go from image to webpage. One day. Probably quite soon...