サイドバー

                <div class="flex h-screen bg-gray-100 dark:bg-gray-900">
  <aside class="w-64 bg-white dark:bg-gray-800 border-r border-gray-200 dark:border-gray-700 shadow-lg transition-all duration-300 ease-in-out">
    <div class="px-6 py-4">
      <div class="flex items-center space-x-3 mb-4">
        <img src="https://randomuser.me/api/portraits/men/1.jpg" alt="User Avatar" class="w-10 h-10 rounded-full" />
        <h1 class="text-xl font-semibold text-gray-800 dark:text-white">John Doe</h1>
      </div>
      <nav>
        <ul class="space-y-2">
          <li>
            <a href="#" class="block p-2 text-gray-700 dark:text-gray-200 hover:bg-gray-200 dark:hover:bg-gray-700 rounded-md transition duration-200">Dashboard</a>
          </li>
          <li>
            <a href="#" class="block p-2 text-gray-700 dark:text-gray-200 hover:bg-gray-200 dark:hover:bg-gray-700 rounded-md transition duration-200">Profile</a>
          </li>
          <li>
            <a href="#" class="block p-2 text-gray-700 dark:text-gray-200 hover:bg-gray-200 dark:hover:bg-gray-700 rounded-md transition duration-200">Settings</a>
          </li>
          <li>
            <a href="#" class="block p-2 text-gray-700 dark:text-gray-200 hover:bg-gray-200 dark:hover:bg-gray-700 rounded-md transition duration-200">Support</a>
          </li>
        </ul>
      </nav>
    </div>
  </aside>
  <main class="flex-grow p-6">
    <h2 class="text-2xl font-bold text-gray-800 dark:text-white">Welcome to your Dashboard</h2>
    <div class="mt-4 grid grid-cols-1 md:grid-cols-2 gap-4">
      <div class="bg-white dark:bg-gray-800 p-4 rounded-lg shadow-md">
        <img src="https://picsum.photos/300/200" alt="Placeholder Image" class="w-full h-auto rounded-lg mb-2" />
        <h3 class="text-lg font-semibold text-gray-800 dark:text-white">Section 1</h3>
        <p class="text-gray-600 dark:text-gray-300">Some description about this section.</p>
      </div>
      <div class="bg-white dark:bg-gray-800 p-4 rounded-lg shadow-md">
        <img src="https://picsum.photos/300/200" alt="Placeholder Image" class="w-full h-auto rounded-lg mb-2" />
        <h3 class="text-lg font-semibold text-gray-800 dark:text-white">Section 2</h3>
        <p class="text-gray-600 dark:text-gray-300">Some description about this section.</p>
      </div>
    </div>
  </main>
</div>
              

                <div class="bg-gray-100 dark:bg-gray-800 h-screen w-64 shadow-lg p-5">
    <div class="flex items-center mb-6">
        <img class="w-16 h-16 rounded-full" src="https://randomuser.me/api/portraits/men/1.jpg" alt="Avatar">
        <h1 class="text-2xl font-bold text-gray-800 dark:text-white ml-3">Hello, User!</h1>
    </div>
    <ul class="space-y-4">
        <li>
            <a href="#" class="flex items-center p-3 rounded-lg hover:bg-gray-200 dark:hover:bg-gray-700 transition-colors duration-300">
                <img class="w-5 h-5 mr-2" src="https://picsum.photos/20/20?random=1" alt="Icon">
                <span class="text-gray-800 dark:text-white">Dashboard</span>
            </a>
        </li>
        <li>
            <a href="#" class="flex items-center p-3 rounded-lg hover:bg-gray-200 dark:hover:bg-gray-700 transition-colors duration-300">
                <img class="w-5 h-5 mr-2" src="https://picsum.photos/20/20?random=2" alt="Icon">
                <span class="text-gray-800 dark:text-white">Profile</span>
            </a>
        </li>
        <li>
            <a href="#" class="flex items-center p-3 rounded-lg hover:bg-gray-200 dark:hover:bg-gray-700 transition-colors duration-300">
                <img class="w-5 h-5 mr-2" src="https://picsum.photos/20/20?random=3" alt="Icon">
                <span class="text-gray-800 dark:text-white">Settings</span>
            </a>
        </li>
        <li>
            <a href="#" class="flex items-center p-3 rounded-lg hover:bg-gray-200 dark:hover:bg-gray-700 transition-colors duration-300">
                <img class="w-5 h-5 mr-2" src="https://picsum.photos/20/20?random=4" alt="Icon">
                <span class="text-gray-800 dark:text-white">Messages</span>
            </a>
        </li>
        <li>
            <a href="#" class="flex items-center p-3 rounded-lg hover:bg-gray-200 dark:hover:bg-gray-700 transition-colors duration-300">
                <img class="w-5 h-5 mr-2" src="https://picsum.photos/20/20?random=5" alt="Icon">
                <span class="text-gray-800 dark:text-white">Logout</span>
            </a>
        </li>
    </ul>
</div>