RetroBlogレイアウト

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      <h1 class="text-center text-3xl font-bold text-white">RetroBlog</h1>
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          <h2 class="mb-2 text-2xl font-bold text-gray-900 dark:text-gray-100">Blog Post Title</h2>
          <p class="mb-4 text-sm text-gray-600 dark:text-gray-400">Published on October 27, 2023</p>
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          <h2 class="mb-2 text-2xl font-bold text-gray-900 dark:text-gray-100">Another Blog Post</h2>
          <p class="mb-4 text-sm text-gray-600 dark:text-gray-400">Published on October 26, 2023</p>
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            Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.
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          <h3 class="mb-4 text-lg font-bold text-gray-900 dark:text-gray-100">About</h3>
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          <p class="text-gray-700 text-center dark:text-gray-300">A passionate writer sharing thoughts and ideas on various topics.</p>
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          <h3 class="mb-4 text-lg font-bold text-gray-900 dark:text-gray-100">Categories</h3>
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            <li class="mb-2"><a href="#" class="text-blue-600 hover:underline dark:text-blue-400">Technology</a></li>
            <li class="mb-2"><a href="#" class="text-blue-600 hover:underline dark:text-blue-400">Lifestyle</a></li>
            <li><a href="#" class="text-blue-600 hover:underline dark:text-blue-400">Travel</a></li>
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