.to-left,.to-right{position:absolute;background-image:url(//tb2.bdstatic.com/tb/img/tshow_banner_575c2dc.png);background-size:auto 100%;background-repeat:no-repeat;width:20px;height:20px}.to-left{top:76px;left:0;background-position:0 0}.to-right{background-position:-25px 0;right:0;top:76px}.tab-list{position:relative}.hide{display:none}.tab-1,.tab-2{max-height:170px}