next.js/examples/cloudflare-turnstile/app.css

html,
body {
  display: grid;
  place-content: center;
  margin: 0;
  height: 100%;
}

main {
  height: 50vh;
  width: 300px;
  text-align: center;
}

button[type="submit"] {
  cursor: pointer;
  width: 100%;
  outline: none;
  border: none;
  padding: 0.5rem 1rem;
  margin-top: 1rem;
  border-radius: 0.25rem;
  background: #0d6efd;
  font-size: 1.25rem;
  color: #ffffff;
}

.checkbox {
  min-height: 70px;
}