Bootstrap 导航栏在展开后不会折叠（汉堡图标）
[英]Bootstrap nav-bar not collapsing after being expanded (hamburger icon)
问题描述
我在使用 Bootstrap 时遇到了一个小问题。 每次我展开菜单（汉堡图标）时，它在我尝试关闭后都不会折叠。 您能否让我知道我哪里出错了以及我将来可以做些什么来避免这个问题，谢谢。
<body>
<nav id="mainNavBar" class="navbar navbar-expand-md navbar-dark bg-dark">
<a class="navbar-brand" href="#">CANDY</a>
<button class="navbar-toggler" type="button" data-bs-toggle="collapse" data-bs-target="#navLinks"
aria-controls="navbarNavAltMarkup" aria-expanded="false" aria-label="Toggle navigation">
<span class="navbar-toggler-icon"></span>
</button>
<div class="collapse navbar-collapse" id="navLinks">
<ul class="navbar-nav">
<li class="nav-item">
<a class="nav-link" aria-current="page" href="#">HOME</a>
</li>
<li class="nav-item">
<a class="nav-link" href="#">ABOUT</a>
</li>
<li class="nav-item">
<a class="nav-link" href="#">TICKETS</a>
</li>
</ul>
</div>
</nav>`
</body>
1 个解决方案
解决方案1
0 已采纳 2021-10-13 12:40:06
强调文本
<!doctype html> <html lang="en"> <head> <!-- Required meta tags --> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1"> <!-- Bootstrap CSS --> <link href="https://cdn.jsdelivr.net/npm/bootstrap@5.1.3/dist/css/bootstrap.min.css" rel="stylesheet" integrity="sha384-1BmE4kWBq78iYhFldvKuhfTAU6auU8tT94WrHftjDbrCEXSU1oBoqyl2QvZ6jIW3" crossorigin="anonymous"> <title>Hello, world!</title> </head> <body> <nav id="mainNavBar" class="navbar navbar-expand-md navbar-dark bg-dark"> <a class="navbar-brand" href="#">CANDY</a> <button class="navbar-toggler" type="button" data-bs-toggle="collapse" data-bs-target="#navLinks" aria-controls="navbarNavAltMarkup" aria-expanded="false" aria-label="Toggle navigation"> <span class="navbar-toggler-icon"></span> </button> <div class="collapse navbar-collapse" id="navLinks"> <ul class="navbar-nav"> <li class="nav-item"> <a class="nav-link" aria-current="page" href="#">HOME</a> </li> <li class="nav-item"> <a class="nav-link" href="#">ABOUT</a> </li> <li class="nav-item"> <a class="nav-link" href="#">TICKETS</a> </li> </ul> </div> </nav> ` <!-- Optional JavaScript; choose one of the two! --> <!-- Option 1: Bootstrap Bundle with Popper --> <script src="https://cdn.jsdelivr.net/npm/bootstrap@5.1.3/dist/js/bootstrap.bundle.min.js" integrity="sha384-ka7Sk0Gln4gmtz2MlQnikT1wXgYsOg+OMhuP+IlRH9sENBO0LRn5q+8nbTov4+1p" crossorigin="anonymous"></script> <!-- Option 2: Separate Popper and Bootstrap JS --> <!-- <script src="https://cdn.jsdelivr.net/npm/@popperjs/core@2.10.2/dist/umd/popper.min.js" integrity="sha384-7+zCNj/IqJ95wo16oMtfsKbZ9ccEh31eOz1HGyDuCQ6wgnyJNSYdrPa03rtR1zdB" crossorigin="anonymous"></script> <script src="https://cdn.jsdelivr.net/npm/bootstrap@5.1.3/dist/js/bootstrap.min.js" integrity="sha384-QJHtvGhmr9XOIpI6YVutG+2QOK9T+ZnN4kzFN1RtK3zEFEIsxhlmWl5/YESvpZ13" crossorigin="anonymous"></script> --> </body> </html>
我试了一下，效果很好。 确保您使用正确的引导程序版本。
导航栏在折叠后没有展开？
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