/*窗口背景*/
.window {
background-color: #fff;
background: -webkit-linear-gradient(top,#EFF5FF 0,#fff 20%);
background: -moz-linear-gradient(top,#EFF5FF 0,#fff 20%);
background: -o-linear-gradient(top,#EFF5FF 0,#fff 20%);
background: linear-gradient(to bottom,#EFF5FF 0,#fff 20%);
background-repeat: repeat-x;
filter: progid:DXImageTransform.Microsoft.gradient(startColorstr=#fFF,endColorstr=#fFF,GradientType=0);
}
/*兼容IE9*/
:root .window {filter:none;}