Cheat Sheets

This article will collect the cheat sheets I've found useful.

CSS - Cascading Style Sheet
CSS 2 Help Sheet
CSS 3 Help Sheet
CSS 3 Cheat Sheet
DevCheatSheet’s CSS3 Cheat Sheets
CSS3 Color Names (CodeNique)
CSS3 – Information and samples (Robert Nyman)





HTML 
HTML 5 Cheat Sheet
DevCheatSheet’s HTML5 Cheat Sheets  with 22 cheat sheets
Browser Compatibility Charts  (MediaLoot)
HTML5 – Information and samples for HTML5 and related APIs (Robert Nyman)
HTML5/CSS3 Cheatsheet (Stories In Flight)
HTML Cheat Sheet for Transition to HTML 5 (html-5.com)
W3C cheatsheet (W3C)





Editors
VI Cheat Sheet