.box {
    position: relative;
    overflow: hidden;
    background-image: url(../../Content/netshop/pic_bg_wanggou.png);
    background-repeat: no-repeat;
    height: 830px;
    filter: "progid:DXImageTransform.Microsoft.AlphaImageLoader(sizingMethod='scale')";
    -moz-background-size: 100% 100%;
    background-size: 100% 100%;
    background-attachment: fixed;
}
.content{ position:relative;}
.left-box{ height:320px; width:480px; position:absolute;  right:50px; top:270px;}
.nettip {
    color: #767676;
    font-size:18px;
    padding-top:30px;
}
.item-img-box{ float:left; width:220px;}
.ewm-box{ padding-top:25px;}
.ewm-box img {
   height:160px;
}