ナビゲーションコンポーネント

<nav class="bg-gray-900 text-white p-4">
    <div class="container mx-auto flex justify-between items-center">
        <div class="flex items-center space-x-4">
            <a href="#" class="text-lg font-semibold">Brand</a>
            <a href="#" class="hidden md:block">Home</a>
            <a href="#" class="hidden md:block">About</a>
            <a href="#" class="hidden md:block">Services</a>
            <a href="#" class="hidden md:block">Contact</a>
        </div>
        <div class="flex items-center space-x-4">
            <input type="text" placeholder="Search..." class="bg-gray-800 text-white p-2 rounded-md" />
            <img src="https://randomuser.me/api/portraits/men/1.jpg" alt="User Avatar" class="w-10 h-10 rounded-full"/>
        </div>
    </div>
</nav>

<main class="bg-gray-800 min-h-screen p-4">
    <h1 class="text-3xl mb-4">Welcome to Our Website</h1>
    <img src="https://picsum.photos/800/300" alt="Placeholder" class="w-full rounded-lg mb-4" />
    <p class="text-gray-300">This is a simple layout demo for the Navigation Component.</p>
</main>

<footer class="bg-gray-900 text-white p-4">
    <div class="container mx-auto text-center">
        <p>© 2023 Navigation Component. All rights reserved.</p>
    </div>
</footer>