position:absolute; left:0; top:0; } .advbox{position:relative;margin:0px auto;width:1200px; background-color:#FFF; z-index:99999999999999;} .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-rep 0 2000 记--全五册（传世经典 文白对照）精 明实录 附校勘记(183册)布面精装