如何使用CSS框架实现导航栏布局_Bootstrap Tailwind案例

<nav class="navbar navbar-expand-lg navbar-dark bg-primary">
  <div class="container-fluid">
    <a class="navbar-brand" href="#">品牌</a>
    <button class="navbar-toggler" type="button" data-bs-toggle="collapse" data-bs-target="#navMenu">
      <span class="navbar-toggler-icon"></span>
    </button>
    <div class="collapse navbar-collapse" id="navMenu">
      <ul class="navbar-nav ms-auto">
        <li class="nav-item"><a class="nav-link" href="#">首页</a></li>
        <li class="nav-item"><a class="nav-link" href="#">关于</a></li>
        <li class="nav-item"><a class="nav-link" href="#">服务</a></li>
      </ul>
    </div>
  </div>
</nav>

<nav class="bg-blue-600 text-white shadow-md">
  <div class="container mx-auto px-4 py-3 flex justify-between items-center">
    <a href="#" class="text-xl font-bold">品牌</a>
    <div class="hidden md:flex space-x-6">
      <a href="#" class="hover:underline">首页</a>
      <a href="#" class="hover:underline">关于</a>
      <a href="#" class="hover:underline">服务</a>
    </div>
    <button class="md:hidden">&#9776;</button>
  </div>
</nav>

<script>
  function toggleMenu() {
    const menu = document.getElementById('mobile-menu');
    menu.classList.toggle('hidden');
  }
</script>