*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;color:#2c3e50;background:#fff;-webkit-font-smoothing:antialiased}a{text-decoration:none;color:#3498db}a:hover{color:#2980b9}input:focus,button:focus{outline:none}@keyframes spin{to{transform:rotate(360deg)}}