*{margin:0;padding:0}body,html{background:#fbfaf8}#app,body,html{max-width:460px;margin:0 auto}#app{font-family:Microsoft YaHei,Avenir,Helvetica,Arial,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}a,button,input{-webkit-tap-highlight-color:rgba(0,0,0,0);outline:none}.music-btn{position:fixed;background:url(http://www.nbd.com.cn/corp/20201225nianzhongtekan/on.png) no-repeat;background-size:100% 100%;width:.75rem;height:.75rem;top:2%;right:6%;z-index:100}.music-switch{animation:around 5s;-webkit-animation:around 5s linear infinite}@keyframes around{0%{transform:rotate(0deg)}to{transform:rotate(1turn)}}@-webkit-keyframes around{0%{transform:rotate(0deg)}to{transform:rotate(1turn)}}