bootstrap导航栏没有出现

时间:2017-06-20 01:16:20

标签: css ruby-on-rails bootstrap-4

我在使用Bootstrap时遇到了麻烦。以下是我在rails中的应用程序页面,其中禁用了postgresql和turbolinks。让我知道我做错了什么,我无法理解。

<!DOCTYPE html>
<html>
 <head>
<title>Website</title>
<%= csrf_meta_tags %>

<%= stylesheet_link_tag    'application', media: 'all' %>
<%= javascript_include_tag 'application' %>
<link rel="stylesheet" 
href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" 
integrity="sha384-
BVYiiSIFeK1dGmJRAkycuHAHRg32OmUcww7on3RYdg4Va+PmSTsz/K68vbdEjh4u" 
crossorigin="anonymous">
</head>
<body>


<nav class="navbar navbar-toggleable-md navbar-light bg-faded">
<button class="navbar-toggler navbar-toggler-right" type="button" data-
toggle="collapse" data-target="#navbarNav" aria-controls="navbarNav" aria-
expanded="false" aria-label="Toggle navigation">
<span class="navbar-toggler-icon"></span>
</button>
<a class="navbar-brand" href="#">Navbar</a>
<div class="collapse navbar-collapse" id="navbarNav">
<ul class="navbar-nav">
  <li class="nav-item active">
    <a class="nav-link" href="#">Home <span class="sr-only">(current)</span>
</a>
  </li>
  <li class="nav-item">
    <a class="nav-link" href="#">Features</a>
  </li>
  <li class="nav-item">
    <a class="nav-link" href="#">Pricing</a>
  </li>
  <li class="nav-item">
    <a class="nav-link disabled" href="#">Disabled</a>
  </li>
  </ul>
 </div>
</nav>


<%= yield %>
</body>
</html>

The page looks as follows Browser console as follows, Using Bootstrap Gem and jquery Gem, let me know why I am recieving errors

1 个答案:

答案 0 :(得分:0)

您只导入了bootstrap的CSS。你也需要JS。

<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js" integrity="sha384-Tc5IQib027qvyjSMfHjOMaLkfuWVxZxUPnCJA7l2mCWNIpG9mGCD8wGNIcPD7Txa" crossorigin="anonymous"></script>

最好使用bootstrap gem,我经常使用bootstrap-sass