1、font连写：
例如：font:15px/23px "ralewayregular","Helvetica Neue",Helvetica,Arial,sans-serif
2、counter-reset
例如：counter-reset: /steps 0;
3、text-indent:100%
4、transition-duration:0.2s
transition-timing-function:ease;
5、chrome url
6、text-transform:none;
7、text-rendering:optimizelegibility
8、transition:color 0.2s linear 0s;
9、transform:translateY(-100%);
10、backface-visibility:hidden;
11、-moz-box-sizing: border-box;
12、white-space: normal
13、text-transform:uppercase;
13、letter-spacing:1px;
14、background-attachment:fixed !important; background-attachment: scroll;
15、css媒体属性
16、use strict