.videoBoxp{width:650px;height:400px;border-radius:10px;overflow:hidden;background:#192227;position:absolute;top:50%;left:50%;transform:translate(-50%,-50%)}.videoBoxp .close{position:absolute;right:20px;top:20px;font-size:25px;color:#fff;cursor:pointer}.videoBoxp video{width:100%;height:100%}.pageTutorial{height:calc(100vh - 70px);overflow-y:auto}.integralBox{margin-top:15px;box-sizing:border-box}.integralBox ul{overflow:hidden}.integralBox ul li{float:left;width:calc(20% - 12px);height:300px;margin-bottom:15px;border-radius:10px;cursor:pointer}.integralBox ul li:not(:nth-child(5n)){margin-right:15px}