body,html{padding:0;margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Open Sans,Helvetica Neue,sans-serif;background:#f5f5f5}*{box-sizing:border-box}a{color:inherit;text-decoration:none}nav a:hover{color:#1677ff}