html,body,#app{height:100%;margin:0;padding:0}*{box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,PingFang SC,Microsoft YaHei,sans-serif;-webkit-tap-highlight-color:transparent;-webkit-font-smoothing:antialiased}