导航栏

                <nav class="bg-white dark:bg-gray-800 shadow-lg">
  <div class="max-w-7xl mx-auto px-2 sm:px-6 lg:px-8">
    <div class="flex justify-between h-16">
      <div class="flex">
        <div class="flex-shrink-0">
          <a href="#" class="text-2xl font-bold text-gray-800 dark:text-white">Brand</a>
        </div>
        <div class="hidden md:flex md:space-x-8">
          <a href="#" class="text-gray-800 dark:text-gray-300 hover:bg-gray-200 dark:hover:bg-gray-700 hover:text-gray-900 dark:hover:text-white px-3 py-2 rounded-md text-sm font-medium">Home</a>
          <a href="#" class="text-gray-800 dark:text-gray-300 hover:bg-gray-200 dark:hover:bg-gray-700 hover:text-gray-900 dark:hover:text-white px-3 py-2 rounded-md text-sm font-medium">About</a>
          <a href="#" class="text-gray-800 dark:text-gray-300 hover:bg-gray-200 dark:hover:bg-gray-700 hover:text-gray-900 dark:hover:text-white px-3 py-2 rounded-md text-sm font-medium">Services</a>
          <a href="#" class="text-gray-800 dark:text-gray-300 hover:bg-gray-200 dark:hover:bg-gray-700 hover:text-gray-900 dark:hover:text-white px-3 py-2 rounded-md text-sm font-medium">Contact</a>
        </div>
      </div>
      <div class="hidden md:flex items-center">
        <img src="https://randomuser.me/api/portraits/men/1.jpg" alt="User Avatar" class="h-10 w-10 rounded-full border border-gray-300 dark:border-gray-700"
        />
      </div>
      <div class="-mr-2 flex md:hidden">
        <button class="inline-flex items-center justify-center p-2 rounded-md text-gray-400 hover:text-white hover:bg-gray-700 focus:outline-none focus:ring-2 focus:ring-offset-2 focus:ring-offset-gray-800"> 
          <svg class="h-6 w-6" xmlns="http://www.w3.org/2000/svg" fill="none" viewBox="0 0 24 24" stroke="currentColor">
            <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M4 6h16M4 12h16m-7 6h7" />
          </svg>
        </button>
      </div>
    </div>
  </div>
  <div class="md:hidden">
    <a href="#" class="block text-gray-800 dark:text-gray-300 hover:bg-gray-200 dark:hover:bg-gray-700 hover:text-gray-900 dark:hover:text-white px-3 py-2 rounded-md text-base font-medium">Home</a>
    <a href="#" class="block text-gray-800 dark:text-gray-300 hover:bg-gray-200 dark:hover:bg-gray-700 hover:text-gray-900 dark:hover:text-white px-3 py-2 rounded-md text-base font-medium">About</a>
    <a href="#" class="block text-gray-800 dark:text-gray-300 hover:bg-gray-200 dark:hover:bg-gray-700 hover:text-gray-900 dark:hover:text-white px-3 py-2 rounded-md text-base font-medium">Services</a>
    <a href="#" class="block text-gray-800 dark:text-gray-300 hover:bg-gray-200 dark:hover:bg-gray-700 hover:text-gray-900 dark:hover:text-white px-3 py-2 rounded-md text-base font-medium">Contact</a>
  </div>
</nav>