body { font: 1.25rem/1.6 system-ui, sans-serif; max-width: 40rem; margin: 2rem auto; padding: 0 1rem; color: #111; background: #fff; }
label, input, button { display: block; font: inherit; }
input { width: 100%; padding: 0.5rem; margin: 0.25rem 0 1rem; box-sizing: border-box; }
button { padding: 0.5rem 1.5rem; margin-top: 1rem; }