body{align-items:center;display:flex;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;height:100vh;justify-content:center;margin:0;text-align:center}h1{color:#333;margin-bottom:1rem}a{color:#0080ff;text-decoration:none}a:hover{text-decoration:underline}