*,*:before,*:after{box-sizing:border-box}html,body{margin:0;padding:0;height:100%;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;font-size:16px;color:#1a1a2e;background:#f0f2f5;-webkit-font-smoothing:antialiased}