JS1K - Markdown
Well, it does not look that good in the js1k page , so here the link to the official demo hosted by my site . Check the source code there, the page is entirely written in Markdown :) I submitted this demo because Markdown is widely used, and I believed loved too, by many developers and specially in github, but I may consider to create the whole thing in less than 1kb using gzip compression if people will like the idea.