Css Bootstrap 4响应导航条赢得';不提供下拉菜单
我正试图让bootstrap的导航栏的下拉功能发挥作用,但我还没能让菜单真正下拉。它太暗了,我把它涂成黑色,让它显示在页面上,但当我点击它时,它不会提供任何选项 我使用下面的代码导航栏本身Css Bootstrap 4响应导航条赢得';不提供下拉菜单,css,bootstrap-4,navbar,Css,Bootstrap 4,Navbar,我正试图让bootstrap的导航栏的下拉功能发挥作用,但我还没能让菜单真正下拉。它太暗了,我把它涂成黑色,让它显示在页面上,但当我点击它时,它不会提供任何选项 我使用下面的代码导航栏本身 <nav class="navbar navbar-expand-md topHeader"> <a class="navbar-brand nameHeader"> <h1 class="navbarHeader">David Mitchell B
<nav class="navbar navbar-expand-md topHeader">
<a class="navbar-brand nameHeader">
<h1 class="navbarHeader">David Mitchell Barnett</h1>
</a>
<button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#collapsibleNavbar" aria-controls="collapsibleNavbar" aria-expanded="false" aria-label="Toggle navigation" style="background-color: black" >
<span class="navbar-toggler-icon"></span>
</button>
<div class="collapse navbar-collapse" id="collapsibleNavbar">
<ul class="navbar-nav ml-auto">
<li class="nav-item">
<a class="nav-link" href="index.html">
<h3>About</h3>
</a>
</li>
<li class="nav-item">
<a class="nav-link" href="portfolio.html">
<h3>Portfolio</h3>
</a>
</li>
<li class="nav-item">
<a class="nav-link" href="contact.html">
<h3>Contact</h3>
</a>
</li>
</ul>
</div>
</nav>
我注意到的问题是,在您共享的JSFIDLE中,您的js脚本位于错误的位置,您必须首先链接jquery,然后再链接引导js
您的代码:
<script src="https://stackpath.bootstrapcdn.com/bootstrap/4.1.3/js/bootstrap.min.js" integrity="sha384-ChfqqxuZUCnJSK3+MXmPNIyE6ZbWh2IMqE241rYiqJxyMiZ6OW/JmZQ5stwEULTy" crossorigin="anonymous"></script>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.12.4/jquery.min.js"></script>
只需按如下方式切换顺序:
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.12.4/jquery.min.js"></script>
<script src="https://stackpath.bootstrapcdn.com/bootstrap/4.1.3/js/bootstrap.min.js" integrity="sha384-ChfqqxuZUCnJSK3+MXmPNIyE6ZbWh2IMqE241rYiqJxyMiZ6OW/JmZQ5stwEULTy" crossorigin="anonymous"></script>
哦,看在基督的份上,谢谢你,这就解决了它。bootstrap.min.js
需要在加载之前加载jquery.js
。