For web developers and designers, it can be difficult to memorize the syntax for multiple programming languages and frameworks, especially since they are always evolving and growing. This is where cheat sheets come in handy. Most cheat sheets are designed to be printer friendly, so you can have them laying around on your desk as quick reference cards. Here is a collection of useful cheat sheets specifically for front end web development that will help you with HTML, JavaScript, and CSS.
[From 14 Helpful Cheat Sheets for Front-end Web Development]
