https://github.com/AakashRao-dev/Cheatsheets-for-Developers

https://flexbox.malven.co/

https://grid.malven.co/

Cheatsheets

OverAPI Awesome-Cheatsheets Bootstrap 4 Cheatsheet GitSheet HTML 5 Element Index HTML Cheatsheet Can I Use Rico's Cheatsheet Cheatography CSS3 Animation Cheatsheet