How can I change Github markdown background?

I want to change background of github markdown file. How can I do it? Is there specific markdown command to do that or maybe some HTML or CSS code? Or some other way?


  • As far as I know, there's no way to do that.

    In this file you'll find available HTML tags in github-flavored markdown: (this is linked to by Github's README themselves)

    It is also said here that:

    The HTML is sanitized, aggressively removing things that could harm you and your kin—such as script tags, inline-styles, and class or id attributes.