.turntable-btn{position:absolute;left:calc(50% - 40px);top:calc(50% - 40px);z-index:3;width:80px;height:80px;border-radius:50%;color:#f4e9cc;background-color:#e44025;line-height:80px;text-align:center;font-size:20px;text-shadow:0 -1px 1px rgba(0,0,0,.6);box-shadow:0 3px 5px rgba(0,0,0,.6);text-decoration:none}.turntable-btn:after{position:absolute;display:block;content:"";left:10px;top:-46px;width:0;height:0;overflow:hidden;border:30px solid transparent;border-bottom-color:#e44025}.turntable-btn.disabled{pointer-events:none;background:#b07a7b;color:#ccc}.turntable-btn.disabled:after{border-bottom-color:#b07a7b}.danmu{border-radius:15px;background-color:rgba(0,0,0,.3);color:#fff;padding:2px 10px;position:absolute;z-index:10;left:110%;white-space:nowrap;animation:danmu 6s linear 0s 1}@keyframes danmu{0%{left:110%;transform:translateX(0)}to{left:0;transform:translateX(-100%)}}