Exemplo de componentização de seletores no TailwindCSS usando SCSS

tailwindcss-componentizacao.scss

.btn-city {
  @apply block w-full rounded-full border border-gray-200 py-6;
  @apply bg-gray-200 text-red-600 text-3xl text-center leading-tight;

  &:focus {
    @apply outline-none;
  }

  &:hover {
    @apply bg-white border-gray-500;
  }
}