#elevator_item{display:none;width:60px;height:100px;position:fixed;right:15px;bottom:10px;-webkit-transition:opacity .4s ease-in-out;-moz-transition:opacity .4s ease-in-out;-o-transition:opacity .4s ease-in-out;opacity:1;z-index:100020; display:none;}#elevator_item.off{opacity:0;visibility:hidden}#elevator{display:block;width:60px;height:50px;background:url(img/icon_top.png) center center no-repeat;background-color:#444;background-color:rgba(0,0,0,.6);border-radius:2px;box-shadow:0 1px 3px rgba(0,0,0,.2);cursor:pointer;margin-bottom:10px}#elevator:hover{background-color:rgba(0,0,0,.7)}#elevator:active{background-color:rgba(0,0,0,.75)}#elevator_item .qr{display:block;width:0px;height:0px;border-radius:2px;box-shadow:0 1px 3px rgba(0,0,0,.2);cursor:pointer;background-color:rgba(0,0,0,.6)}#elevator_item .qr:hover{display:none;background-color:rgba(0,0,0,.7)}#elevator_item .qr:active{background-color:rgba(0,0,0,.75)}#elevator_item .qr-popup{width:170px;height:200px;background:#fff;box-shadow:0 1px 8px rgba(0,0,0,.1);position:absolute;left:-180px;bottom:0;border-radius:2px;display:none;text-align:center}#elevator_item .qr-popup .code-link{display:block;margin:10px;color:#777}#elevator_item .qr-popup .code{display:block;margin-bottom:10px}#elevator_item .qr-popup .arr{width:6px;height:11px;background:url(img/code_arrow.png) 0 0 no-repeat;position:absolute;right:-6px;bottom:14px}