在 youtube 上遵循有关实现简单导航菜单的教程后,我在获取下拉菜单以显示和折叠两个附加链接时遇到了问题。似乎无法弄清楚问题所在。我需要链接到另一个样式表或.js文件吗?
<html>
<head>
<title>None</title>
<link type="text/css" rel="stylesheet" href="css/bootstrap.css">
</head>
<body>
<!--Fixed Navbar with dropdown -->
<div class ="navbar navbar-inverse navbar-fixed-top">
<div class="navbar-header">
<button type="button" class="navbar-toggle" data-toggle"collapse" data-target=".navbar-collapse">
<span class="icon-bar"></span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
</button>
<a href="#" class="brand"><img class="logo" src="images/om_logo_2.png"></a>
</div>
<div class="navbar-collapse collapse">
<ul class="nav navbar-nav">
<li class="dropdown">
<a href="#" class="dropdown-toggle" data-toggle="dropdown">Opportunities <b class="caret"></b></a>
<ul class="dropdown-menu">
<li><a href="hgv.html">HGV & Lorry Delivery</a></li>
<li><a href="domestic.html">Domestic Parcel & Package Courier</a></li>
</ul>
</li>
<li><a href="#">Vehicle Hire</a></li>
<li><a href="#">Contact Us</a></li>
</ul>
</div>
</div>
...
<script src="js/jquery.js"></script>
<script src="js/bootstrap.js"></script>
</body>
</html>
你没有引用 jquery 库
就像这里的引导程序示例一样
<!-- jQuery (necessary for Bootstrap's JavaScript plugins) -->
<script src="https://code.jquery.com/jquery.js"></script>
<!-- Include all compiled plugins (below), or include individual files as needed -->
<script src="js/bootstrap.min.js"></script>
更改此内容。
<button type="button" class="navbar-toggle" data-toggle"collapse" data-target=".navbar-collapse">
自
<button type="button" class="navbar-toggle" data-toggle="collapse" data-target=".navbar-collapse">
正在开发 Bootply:http://bootply.com/103529