@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

.spinner {
  border: 0.3rem solid rgba(0, 0, 0, 0.2);
  border-top-color: white;
  border-radius: 50%;

  height: 1.7rem;
  width: 1.7rem;

  animation: spin 0.9s ease-in-out infinite;
}