a.button {
  display: inline-flex;
  justify-content: center;
  align-items: center;
  text-align: center;
  color: White;
  background-color: var(--red);
  border-radius: 0.5rem;
  margin: 0;
  padding: 2rem 1rem;
}

a.button:hover {
  color: White;
  background-color: var(--petrol);
}