main {
  display: flex;
  flex-flow: column;
  align-items: center;
  justify-items: center;
  text-align: center;
  height: 100vh;
  background: #111;
  color: #eaeaea;
  font-size: 3rem;
}

.hidden {
  display: none;
}

button {
  background-color: #0070f3;
  color: #eaeaea;
  padding: 2rem;
  border-radius: 0.5rem;
  font-size: 2rem;
  border: none;
  margin-top: 2rem;
}

span {
  color: #0070f3;
}