There are a few ways to define custom styles for HTML (which Markdown generates), but GitHub does not permit them. I have just tried this syntax at GitHub and it appears to work now. This is all github supports as of Jan 2017.There are many online markdown testers that say they comply with GFM and show things like inline styles working, but github markdown [pretty much]* doesn't support HTML/CSS at the moment. I like this style, very markdown-y. Digital currency trader. And I agree, the answer was exactly on point. @tuzz that's not how it works. Github users: inline styles do not work on github and are not included as extended features of Github Flavored Markdown. The purpose of this is to emulate the CSS used within the markdown viewer and wiki pages. github/bitbucket markdown supports a similar indentation rule, without the +: [tab][space]your-text-goes-here – roblogic May 11 '18 at 3:06. add a comment | 12. Yeah, This was a perfectly clear question to me as well. – Ege Rubak Sep 4 '14 at 10:50. Markdown files are rendered by github.com website through the use of the Ruby Redcarpet library. 6. 3. And Markdown started to be used beyond the web, to author books, articles, slide shows, letters, and lecture notes. Markdown is a way to style text on the web. – Eliot May 2 '14 at 15:58. 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. Some allowed Markdown documents to be rendered in formats other than HTML. One such way is to define CSS rules. Welcome to 1999. However, no … This is an interesting hack, but it's misusing tables for layout. This works for me and hope work for you too. 3. – jxpx777 Mar 6 '15 at 4:12. Too bad it doesn't work on github (not yet anyway.) Redcarpet exposes some extensions (such as strikethrough, for instance) which are not part of standard Markdown syntax and provide additional "features". For those who don't know that GitHub filters Markdown output, I suppose the question could be confusing. Websites like Reddit, StackOverflow, and GitHub had millions of people using Markdown. However, right in the spec , GitHub explicitly states that they do not allow