.main {position:relative;width:980px;height:4800px;background-color:#FC6;margin:0 auto;padding-top:220px}
#AdLayer {position:absolute;width:20px;display:none;height:59px;top:0px;right:-30px;}
img {border:0;}
.aboutNavTit {
    background: url("../images/aboutBg.gif") no-repeat scroll 0 0 transparent;
}
.aboutNavTit span {
    background: url("../images/aboutBg.gif") no-repeat scroll -12px -35px transparent;
    display: block;
    height: 33px;
    line-height: 33px;
    padding-left: 30px;
}