# Markdown In selected text inputs in ReCodEx web application Markdown markup language can be used. Markdown is simple and lightweight and can be used for quick formatting of your input. ReCodEx uses [CommonMark](http://commonmark.org/) syntax specification of Markdown. A lot of cheatsheets and tutorials have been made on displaying Markdown features, here are few of them: * [http://commonmark.org/help/]() * [https://github.com/adam-p/markdown-here/wiki/Markdown-Cheatsheet]() * [https://guides.github.com/features/mastering-markdown/]()