*,*:before,*:after{box-sizing:border-box}body{font-family:sans-serif;background-color:#000;overflow:hidden;margin:0;color:#fff}.bottom{position:absolute;bottom:10px;z-index:2;left:50%;transform:translate(-50%);height:30px;-webkit-user-select:none;user-select:none;font-size:12px}#card-btn{z-index:3;width:120px;background-color:#0003;border:1px solid #fff;border-radius:5px;align-items:center;justify-content:center;cursor:pointer;display:none;-webkit-tap-highlight-color:transparent}