引导程序导航栏折叠下拉菜单

Bootstrap Navbar Collapse Dropdown Menu

本文关键字：下拉菜单折叠导航引导程序更新时间：2023-09-26

我正在开发一个引导网站，导航栏中有一个下拉框。导航栏处于折叠模式时。下拉菜单没有响应有人知道为什么会发生这种情况吗

该网站位于http://horizonarb.co.uk/index.html

代码如下：；

非常感谢！

    <!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="utf-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1">
    <!-- The above 3 meta tags *must* come first in the head; any other head content must come *after* these tags -->
    <title>Horizon Arboriculture</title>
    <!-- Bootstrap -->
    <link href="css/bootstrap.min.css" rel="stylesheet">
    <!-- Google Fonts -->
    <script src="js/googleFonts.js" type="text/javascript"></script>
    <link href='https://fonts.googleapis.com/css?family=Lobster+Two' rel='stylesheet' type='text/css'>
     <!-- Custom CSS -->
    <link href="css/custom.css" rel="stylesheet"></link>
    <!-- Font Awesome -->
    <link rel="stylesheet" href="css/fontawesome/font-awesome.min.css">
    <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/font-awesome/4.4.0/css/font-awesome.min.css">

    <!-- HTML5 shim and Respond.js for IE8 support of HTML5 elements and media queries -->
    <!-- WARNING: Respond.js doesn't work if you view the page via file:// -->
    <!--[if lt IE 9]>
      <script src="https://oss.maxcdn.com/html5shiv/3.7.2/html5shiv.min.js"></script>
      <script src="https://oss.maxcdn.com/respond/1.4.2/respond.min.js"></script>
    <![endif]-->
  </head>
  <body>
     <div class="navbar navbar-default navbar-static-top" style="margin-bottom: 0px;">
        <div class="container">
            <div class="navbar-header">
                <button class="navbar-toggle" data-toggle="collapse" data-target=".navbar-collapse">
                    <small>MENU</small>
                </button>
             <a href=""><img src="img/front/HorizonArb_Tree_Transparent.png" class="noResize"></a>
            </div> <!-- class="navbar-header" -->
            <div class="collapse navbar-collapse">
                <ul class="nav nav-pills navbar-right">
                    <li class="active"><a href="index.html">Home</a></li>
                    <li class="dropdown">
                        <a href="#" class="dropdown-toggle" data-toggle="dropdown" role="button" aria-haspopup="true" aria-expanded="false">Services <span class="caret"></span></a>
                        <ul class="dropdown-menu">
                          <li><a href="#">Crown Thinning</a></li>
                          <li><a href="#">Crown Lifting</a></li>
                          <li><a href="#">Crown Reduction</a></li>
                        </ul>
                    </li>
                    <li><a href="contact.php">Contact</a></li>
                </ul>
            </div> <!-- class="collapse navbar-collapse" -->
        </div> <!-- class="container" -->
      </div> <!--  class="navbar navbar-default" -->    

      <div class="container" id="topContainer">
        <div class="row">
            <div class="col-md-6 col-sm-6 col-sm-offset-3 col-md-offset-3 center marginTopThirty">
                <img src="img/front/HorizonArb_Transparent.png" width="70%">

            </div>



    <!-- jQuery (necessary for Bootstrap's JavaScript plugins) -->
    <script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.3/jquery.min.js"></script>
    <!-- Include all compiled plugins (below), or include individual files as needed -->
    <script src="js/bootstrap.min.js"></script>
  </body>
</html>

下拉列表是打开和关闭的，但它被容器隐藏在视图之外。以下CSS应该修复这个问题：

.navbar-static-top .navbar-collapse.in {
    overflow-y: visible; /* Bootstrap default is "auto" */
}