body{font-family:system-ui,sans-serif;background:#f5f7f0;color:#254e3b;padding:8vw}main{max-width:700px;margin:auto}h1{font-size:42px}button,a{display:inline-block;margin:15px;padding:12px;border:1px solid #254e3b;border-radius:6px}button{cursor:pointer}