Bootstrap响应式模式下Dropdown Toggle无法正常工作求助

你的代码里存在一个关键错误：折叠按钮的data-bs-target属性值与折叠容器的ID不匹配，这是导致按钮无法正常工作的核心原因。

按钮中的data-bs-target="#navbarNavDropdown"指向的ID不存在，而实际需要折叠的导航容器ID是navbarNavAltMarkup，两者不匹配导致点击按钮时无法触发折叠效果。

修正后的完整代码 #

<link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/bootstrap@5.2.0/dist/css/bootstrap.min.css" integrity="sha384-gH2yIJqKdNHPEq0n4Mqa/HGKIhSkIHeL5AyhkYV8i59U5AR6csBvApHHNl/vI1Bx" crossorigin="anonymous">

<nav class="navbar navbar-expand-lg bg-light px-2">
  <div class="container-fluid">
    <a class="navbar-brand" href="#">
      <img class="company-logo" src="https://via.placeholder.com/50" alt="company logo" height="20%" />
      <span class="company-name">Company Name</span>
    </a>
    <button class="navbar-toggler" type="button" data-bs-toggle="collapse" data-bs-target="#navbarNavAltMarkup" aria-controls="navbarNavAltMarkup" aria-expanded="false" aria-label="Toggle navigation">
        <span class="navbar-toggler-icon"></span>
      </button>
    <div class="collapse navbar-collapse float-end" id="navbarNavAltMarkup">
      <div class="navbar-nav navbar-item">
        <a class="nav-link mx-3" aria-current="page" href="#">HOME</a>
        <a class="nav-link mx-3" href="#">ABOUT US</a>
        <a class="nav-link mx-3" href="#">FEATURES</a>
        <a class="nav-link mx-3" href="#">CONTACT US</a>
        <a href="#" class=" nav-link login-btn mx-3">LOG IN</a>
      </div>
    </div>
  </div>
</nav>

<script src="https://cdn.jsdelivr.net/npm/bootstrap@5.2.0/dist/js/bootstrap.bundle.min.js" integrity="sha384-A3rJD856KowSb7dwlZdYEkO39Gagi7vIsF0jrRAoQmDKKtQBHUuLZ9AsSv4jD4Xa" crossorigin="anonymous"></script>

关键修正点 #

• 将按钮的data-bs-target值修改为#navbarNavAltMarkup，与折叠容器的ID保持一致
• 同步更新aria-controls属性值为navbarNavAltMarkup，保证无障碍属性的正确性

内容的提问来源于stack exchange，提问作者Mohammad Zaid