*{box-sizing:border-box}html,body,#app{margin:0;padding:0;height:100%}body{font-family:-apple-system,BlinkMacSystemFont,PingFang SC,Hiragino Sans GB,Microsoft YaHei,Helvetica Neue,Arial,sans-serif;background:#f5f6fa;color:#1f2329;-webkit-font-smoothing:antialiased}a{color:inherit}