.advbox{position:relative;margin:0px auto;width:480px;background:#e8e8e8}
.advbox .advbtn{position:absolute;width:19px;display:none;height:55px;top:10px;right:-23px}
.advbox .advbtn a{display:block;background:url(../images/gg_btn.png) no-repeat 0px 0px;height:55px;overflow:hidden}
.advbox .advbtn .advclose{background:url(../images/gg_btn.png) no-repeat -19px 0px;}
.advbox .advcon{display:none;height:400px;margin-top:300px;}