via http://www.ilovejackdaniels.com/
The CSS cheat sheet is designed to act as a reminder and reference sheet, listing all selectors (as of CSS 2.1) and properties. It includes a visual example of the box model, unit reference for CSS units and the various media types CSS makes allowance for. A description of what is on the cheat sheet follows, or if you are impatient, you can go straight to the full size CSS cheat sheet.
CSS cheat sheet（就翻译为速记表吧）是用来给那些记性不大好或者经常查阅CSS手册的人准备的。如果你把它打印出来的话，就一页纸——上面包含了语法、属性、选择符、单位等，甚至还提供了一个盒模型的示意图。