Redcarpet exposes some extensions (such as strikethrough, for instance) which are not part of standard Markdown syntax and provide additional "features". I have just tried this syntax at GitHub and it appears to work now.

– Eliot May 2 '14 at 15:58.

The purpose of this is to emulate the CSS used within the markdown viewer and wiki pages. Too bad it doesn't work on github (not yet anyway.) This works for me and hope work for you too. @tuzz that's not how it works. 3. One such way is to define CSS rules. And Markdown started to be used beyond the web, to author books, articles, slide shows, letters, and lecture notes. It's meant to be used elsewhere. 6.

Markdown files are rendered by github.com website through the use of the Ruby Redcarpet library.

This is an interesting hack, but it's misusing tables for layout. Welcome to 1999. And I agree, the answer was exactly on point. Yeah, This was a perfectly clear question to me as well. But if you know were to link to in the question (to give the needed context), then you will already have the source of the answer and not need to ask the question.

For those who don't know that GitHub filters Markdown output, I suppose the question could be confusing. – Ege Rubak Sep 4 '14 at 10:50.

3. However, right in the spec , GitHub explicitly states that they do not allow