message: chore: add another classlist
diff: @@ -12,6 +12,7 @@ window.addEventListener('DOMContentLoaded', () => {
  dismissButton.addEventListener('click', () => {
  banner.classList.add('Banner--hiding');
  localStorage.setItem(storageKey, 'true');
  + setTimeout(() => banner.classList.add('Banner--hidden'), 300);
  });
  }
  });
  