CSS -- 实现DIV层背景颜色渐变 (兼容IE 火狐 谷歌浏览器)
FILTER: progid:DXImageTransform.Microsoft.Gradient(gradientType=0,startColorStr=#b8c4cb,endColorStr=#f6f6f8); /*IE*/
background:-moz-linear-gradient(top,#b8c4cb,#f6f6f8);/*火狐*/
background:-webkit-gradient(linear, 0% 0%, 0% 100%, from(#b8c4cb), to(#f6f6f8));/*谷歌*/