我正在尝试制作一个折叠的导航栏，但它不起作用，我不知道为什么。
我有这个折叠切换器，它应该针对#navbar1，但是当缩小页面时，导航栏会折叠 .navbar-toggler-icon 显示，但是当单击切换器时，它不会再次弹出。检查 CSS 时，有一个选择器 .collapse:not(.show) 应用 display:none; 但是当我添加那个类 .show 时，它总是显示出来并且不会通过按下切换器隐藏..
谢谢你的帮助 ：）
编辑：我包含了 bootstrap.min.js
<nav class="navbar navbar-light navbar-expand-lg fixed-top">
<div class="container-lg">
<ul class="navbar-brand navbar-nav nav ml-auto">
<li class="nav-item">
<a class="nav-link" href="#">Teamserver.at</a>
</li>
</ul>
<button class="navbar-toggler" type="button" data-bs-toggle="collapse" data-bs-target="#navbar1" aria-controls="navbar1" aria-expanded="false" aria-label="Toggle navigation">
<span class="navbar-toggler-icon"></span>
</button>
<div class="collapse navbar-collapse" id="navbar1">
<ul class="navbar-nav nav ml-auto navbar-right">
<li class="nav-item">
<a class="nav-link" href="#">XMPP/Jabber</a>
</li>
<li class="nav-item ">
<a class="nav-link active" href="#">Über Teamserver</a>
</li>
<li class="nav-item">
<a class="nav-link" href="#">Webinterface</a>
</li>
<li class="nav-item">
<a class="nav-link" href="#">Einstellungen</a>
</li>
<li class="nav-item">
<a class="nav-link" href="#">Software</a>
</li>
</ul>
</div>
<div class="navbar-right">
<ul class="navbar-nav nav ml-auto">
<li class="nav-item">
<a class="nav-link" href="#"><button class="btn btn-light">Sign in</button></a>
</li>
<li class="nav-item">
<a class="nav-link" href="#"><button class="btn btn-primary">Sign up</button></a>
</li>
</div>
</div>
</nav>
如果您想拥有两个单独的菜单（一个用于导航链接，另一个用于登录或注册），请创建两个<div class="collapse navbar-collapse navbar-menu" id="navbar1">具有唯一 ID 和一个公共类的菜单。切换按钮的data-bs-target设置为类，.navbar-menu并aria-controls获取两个 ID，navbar1 navbar2。
<link href="https://cdn.jsdelivr.net/npm/[email protected]/dist/css/bootstrap.min.css" rel="stylesheet"/>
<script src="https://cdn.jsdelivr.net/npm/[email protected]/dist/js/bootstrap.bundle.min.js"></script>
<nav class="navbar navbar-light navbar-expand-lg fixed-top">
<div class="container-lg">
<ul class="navbar-brand navbar-nav nav ml-auto">
<li class="nav-item">
<a class="nav-link" href="#">Teamserver.at</a>
</li>
</ul>
<button class="navbar-toggler" type="button" data-bs-toggle="collapse" data-bs-target=".navbar-menu" aria-controls="navbar1 navbar2" aria-expanded="false" aria-label="Toggle navigation">
<span class="navbar-toggler-icon"></span>
</button>
<div class="collapse navbar-collapse navbar-menu" id="navbar1">
<ul class="navbar-nav nav ml-auto navbar-right">
<li class="nav-item">
<a class="nav-link" href="#">XMPP/Jabber</a>
</li>
<li class="nav-item ">
<a class="nav-link active" href="#">Über Teamserver</a>
</li>
<li class="nav-item">
<a class="nav-link" href="#">Webinterface</a>
</li>
<li class="nav-item">
<a class="nav-link" href="#">Einstellungen</a>
</li>
<li class="nav-item">
<a class="nav-link" href="#">Software</a>
</li>
</ul>
</div>
<div class="collapse navbar-collapse navbar-menu ml-auto" id="navbar2">
<ul class="navbar-nav nav">
<li class="nav-item">
<a class="nav-link" href="#"><button class="btn btn-light">Sign in</button></a>
</li>
<li class="nav-item">
<a class="nav-link" href="#"><button class="btn btn-primary">Sign up</button></a>
</li>
</div>
</div>
</nav>您在第二个导航栏上有一个类navbar-right，但这不是标准的 Bootstrap 类。
添加了一个始终在导航栏中保留登录和注册按钮的版本。
<link href="https://cdn.jsdelivr.net/npm/[email protected]/dist/css/bootstrap.min.css" rel="stylesheet"/>
<script src="https://cdn.jsdelivr.net/npm/[email protected]/dist/js/bootstrap.bundle.min.js"></script>
<nav class="navbar navbar-light navbar-expand-lg fixed-top">
<div class="container-lg">
<ul class="navbar-brand navbar-nav nav ml-auto">
<li class="nav-item">
<a class="nav-link" href="#">Teamserver.at</a>
</li>
</ul>
<div class="collapse navbar-collapse order-1 order-lg-0" id="navbar1">
<ul class="navbar-nav nav ml-auto navbar-right">
<li class="nav-item">
<a class="nav-link" href="#">XMPP/Jabber</a>
</li>
<li class="nav-item ">
<a class="nav-link active" href="#">Über Teamserver</a>
</li>
<li class="nav-item">
<a class="nav-link" href="#">Webinterface</a>
</li>
<li class="nav-item">
<a class="nav-link" href="#">Einstellungen</a>
</li>
<li class="nav-item">
<a class="nav-link" href="#">Software</a>
</li>
</ul>
</div>
<div class="navbar-right d-flex flex-nowrap">
<a href="#" class="btn btn-outline-primary me-3">Sign in</a>
<a href="#" class="btn btn-primary me-3">Sign up</a>
<button class="navbar-toggler" type="button" data-bs-toggle="collapse" data-bs-target="#navbar1" aria-controls="navbar1" aria-expanded="false" aria-label="Toggle navigation">
<span class="navbar-toggler-icon"></span>
</button>
</div>
</div>
</nav>本文收集自互联网，转载请注明来源。
如有侵权，请联系 [email protected] 删除。
我来说两句