xport function square(a) {
  return a * a;
}</code></pre>
    </div>
    <style>
      .unusedCode, .unusedCode > * {
        animation: fade-out 500ms ease-out forwards;
        animation-delay: 2s;
      }

      @keyframes fade-out {
        to {
          @apply text-gray-600;
        }
      }
    </style>
  </div>
</div>
