Question

在youtube上关于实施简单导航菜单的教程后，我遇到了一个问题，即显示下拉菜单并折叠其他两个链接。似乎无法弄清楚问题。我是否需要链接到另一个样式表或.js文件？

<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 &amp; Lorry Delivery</a></li>
                                    <li><a href="domestic.html">Domestic Parcel &amp; 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>

Answer 1

您没有引用jquery库

就像在引导示例here

中一样

<!-- 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>

Answer 2

改变这个..

<button type="button" class="navbar-toggle" data-toggle"collapse" data-target=".navbar-collapse">

到

<button type="button" class="navbar-toggle" data-toggle="collapse" data-target=".navbar-collapse">

使用Bootply：http://bootply.com/103529

Navbar下拉菜单（使用引导程序）不起作用

2 个答案: