body{padding:0;margin:0;line-height:1.5}#app,body{box-sizing:border-box}#app{font-family:Microsoft YaHei,Avenir,Helvetica,Arial,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;text-align:center;color:#2c3e50}