Skeuomorphism Triadic Simple Portfolio Header コンポーネント

<header class="bg-gradient-to-b from-gray-200 to-gray-400 via-gray-300 dark:from-gray-800 dark:to-gray-900 dark:via-gray-700 p-6 shadow-xl">
  <div class="container mx-auto flex justify-between items-center">
    </div>
</header>