CSS3 线性渐变（linear-gradient）

http://www.cnblogs.com/lhb25/archive/2013/01/30/css3-linear-gradient.html

 

background: -moz-linear-gradient(top, #ace, #f96);

background: -webkit-linear-gradient(top, #ace, #f96);

background: -o-linear-gradient(top, #ace, #f96);

background: linear-gradient(left top,#2a3759,#36275c); /* 标准的语法 */