#blank{position:absolute;}
#tab {position:absolute;left:23px;top:205px;width:475px;height:223px;z-index:2;}
#tabSohu{position:absolute;left:29px;top:231px;width:463px;height:191px;background-image:url('images/netad_con_sohu.jpg');background-repeat:no-repeat;visibility:visible;z-index:3;}
#tabSohuTab{position:absolute;left:23px;top:205px;width:95px;height:21px;visibility:visible;z-index:4;}
#tabButtonsSohu {position:absolute;left:446px;top:396px;width:44px;height:37px;visibility:visible;z-index:5;}
#tabSohuContent{position:absolute;left:195px;top:20px;width:264px;height:169px;visibility:visible;z-index:4;}
#tabSina{position:absolute;left:29px;top:231px;width:463px;height:191px;background-image:url('images/netad_con_sina.jpg');background-repeat:no-repeat;visibility:hidden;z-index:3;}
#tabSinaTab{position:absolute;left:142px;top:205px;width:119px;height:21px;visibility:hidden;z-index:4;}
#tabButtonsSina {position:absolute;left:446px;top:396px;width:44px;height:37px;visibility:hidden;z-index:5;}
#tabSinaContent{position:absolute;left:195px;top:20px;width:264px;height:169px;visibility:hidden;z-index:3;}
#tabNetease{position:absolute;left:29px;top:231px;width:463px;height:191px;background-image:url('images/netad_con_netease.jpg');background-repeat:no-repeat;visibility:hidden;z-index:3;}
#tabNeteaseTab{position:absolute;left:261px;top:205px;width:95px;height:21px;visibility:hidden;z-index:4;}
#tabButtonsNetease {position:absolute;left:446px;top:396px;width:44px;height:37px;visibility:hidden;z-index:5;}
#tabNeteaseContent{position:absolute;left:195px;top:20px;width:264px;height:169px;visibility:hidden;z-index:4;}
#tabOnlinesh{position:absolute;left:29px;top:231px;width:463px;height:191px;background-image:url('images/netad_con_onlinesh.jpg');background-repeat:no-repeat;visibility:hidden;z-index:3;}
#tabOnlineshTab{position:absolute;left:380px;top:205px;width:95px;height:21px;visibility:hidden;z-index:4;}
#tabButtonsOnlinesh {position:absolute;left:446px;top:396px;width:44px;height:37px;visibility:hidden;z-index:5;}
#tabOnlineshContent{position:absolute;left:195px;top:20px;width:264px;height:169px;visibility:hidden;z-index:4;}