*,:before,:after{box-sizing:border-box}html,body{color:#1a1a1a;background:#fff;margin:0;padding:0;font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif}.hello{text-align:center;justify-content:center;align-items:center;min-height:100vh;padding:1rem;display:flex}.hello h1{margin:0;font-size:clamp(1.75rem,5vw,3rem)}