<style type="text/css">
.linear{
width:100%;
height:600px;
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*/
}
</style>
<body>
<div class="linear"></div>
</body>