.help-header{background-color:#999;padding:0}#user-header h1{padding:20px 0 50px 10px;color:#fff}#user-header h2{padding:46px 0 50px 190px;color:#fff;font-size:40px;letter-spacing:2px}#help-class{background-color:#f5f5f5}#help-class .row>.col-xs-12{top:-40px;background-color:#fff}#user-header{min-width:1170px}.help-info .list-group{margin-top:20px}.help-info .active,.help-info .active:focus,.help-info .active:hover{background-color:#999;border-color:#939393}.help-cont{padding-bottom:30px}.help-cont h2{font-weight:600;margin-top:30px;margin-bottom:40px}.help-cont .list-group-item{position:relative;display:block;padding:10px 15px;background-color:#fff;border:0;margin-bottom:0;border-bottom:1px dotted #ddd}.help-cont .list-group-item:first-child{border-top-right-radius:0;border-top-left-radius:0}.help-cont .list-group-item:last-child{margin-bottom:0;border-bottom-right-radius:0;border-bottom-left-radius:0}.help-cont .list-group-item .fa{color:#999}.help-cont img{display:block;max-width:100%;height:auto}.help-cont>div{border-bottom:1px dashed #ddd}.help-cont>div li{margin-bottom:10px;color:#878787;cursor:pointer}.help-cont h3{color:#555}.help-cont .fa-question{color:#999;margin-right:5px}.help-cont .fa-play-circle-o{margin:0 10px 0 30px}#videoBg{display:none;position:fixed;left:0;top:0;height:100%;width:100%;background-color:rgba(25,28,34,.88);z-index:19}#videoIframeBox{display:none;width:700px;height:470px;position:fixed;top:50%;left:50%;transform:translate(-50%,-50%);background:#f7f9fa;z-index:20}#videoIframeBox p{margin:0;line-height:30px;padding:15px 50px 0 25px;font-weight:700;font-size:14px;color:#4c5161;user-select:none;position:relative}#videoIframeBox p i{position:absolute;right:20px;top:20px;cursor:pointer;font-size:20px}#videoIframeBox .in{padding:10px 25px 20px}#videoIframe{width:650px;height:370px}