Question

现在我要通过Bootstrap材料并尝试学习如何使用jinja2文件来使用他们的内容我正在为django项目做准备。当我尝试复制和粘贴他们的示例代码时（特别是这个例子http://getbootstrap.com/docs/4.0/components/navbar/）进入我的项目它似乎工作，但没有一个下拉元素响应，当它进入移动它不会扩展。这是我使用我的本地css和js文件，所以我想我会在Jinja网站上使用推荐的cdn文件。现在它功能齐全，但它仍处于移动模式。我该如何解决这个问题？

这是我的来源：

＆＃13;

<!DOCTYPE html>
<html lang="en">

<head>
	<title>My title</title>
	<meta character="utf-8" />
	{%load staticfiles %}
	<!-- <link rel='stylesheet' href="{% static 'css/bootstrap.min.css'%}" type='text/css' media="screen" > -->
	<!-- <script type="text/javascript" src="{% static 'js/bootstrap.min.js'%}"></script>  -->
	<script src="https://code.jquery.com/jquery-3.1.1.slim.min.js" integrity="sha384-A7FZj7v+d/sdmMqp/nOQwliLvUsJfDHW+k9Omg/a/EheAdgtzNs3hpfag6Ed950n" crossorigin="anonymous"></script>
	<script src="https://cdnjs.cloudflare.com/ajax/libs/tether/1.4.0/js/tether.min.js" integrity="sha384-DztdAPBWPRXSA/3eYEEUWrWCy7G5KFbe8fFjk5JAIxUYHKkDx6Qin1DkWx51bBrb" crossorigin="anonymous"></script>
	<script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-alpha.6/js/bootstrap.min.js" integrity="sha384-vBWWzlZJ8ea9aCX4pEW3rVHjgjt7zpkNpZk+02D9phzyeVkE+jo0ieGizqPLForn" crossorigin="anonymous"></script>
	<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-alpha.6/css/bootstrap.min.css" integrity="sha384-rwoIResjU2yc3z8GV/NPeZWAv56rSmLldC3R/AZzGRnGxQQKnKkoFVhFQhNUwEyJ" crossorigin="anonymous">
</head>

<body class="body">


	<nav class="navbar navbar-expand-lg navbar-light bg-light">
	  <a class="navbar-brand" href="#">Navbar</a>
	  <button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarSupportedContent" aria-controls="navbarSupportedContent" aria-expanded="false" aria-label="Toggle navigation">
	    <span class="navbar-toggler-icon"></span>
	  </button>

	  <div class="collapse navbar-collapse" id="navbarSupportedContent">
	    <ul class="navbar-nav mr-auto">
	      <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="#">Link</a>
	      </li>
	      <li class="nav-item dropdown">
	        <a class="nav-link dropdown-toggle" href="#" id="navbarDropdown" role="button" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
	          Dropdown
	        </a>
	        <div class="dropdown-menu" aria-labelledby="navbarDropdown">
	          <a class="dropdown-item" href="#">Action</a>
	          <a class="dropdown-item" href="#">Another action</a>
	          <div class="dropdown-divider"></div>
	          <a class="dropdown-item" href="#">Something else here</a>
	        </div>
	      </li>
	      <li class="nav-item">
	        <a class="nav-link disabled" href="#">Disabled</a>
	      </li>
	    </ul>
	    <form class="form-inline my-2 my-lg-0">
	      <input class="form-control mr-sm-2" type="search" placeholder="Search" aria-label="Search">
	      <button class="btn btn-outline-success my-2 my-sm-0" type="submit">Search</button>
	    </form>
	  </div>
	</nav>


	<div>
	{% block content%}
	{% endblock %}
	</div>
</body>
</html>

＆＃13;

Answer 1

如果您使用的是bootstrap V4.0.0-alpha.6，

替换

navbar navbar-expand-lg navbar-light bg-light

带

navbar navbar-toggleable-md navbar-light bg-faded

参考：https://v4-alpha.getbootstrap.com/components/navbar/

您在问题中添加的link是针对bootstrap V4.0.0-beta.2的，并且您添加的代码头文件是针对Bootstrap v4 alpha6

，您忘记在代码中添加JQuery。

<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-alpha.6/js/bootstrap.min.js"></script>
<link href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-alpha.6/css/bootstrap.min.css" rel="stylesheet"/>

<body>
	
        <nav class="navbar navbar-toggleable-md navbar-light bg-faded">
  <a class="navbar-brand" href="#">Navbar</a>
  <button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarSupportedContent" aria-controls="navbarSupportedContent" aria-expanded="false" aria-label="Toggle navigation">
    <span class="navbar-toggler-icon"></span>
  </button>

  <div class="collapse navbar-collapse" id="navbarSupportedContent">
    <ul class="navbar-nav mr-auto">
      <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="#">Link</a>
      </li>
      <li class="nav-item dropdown">
        <a class="nav-link dropdown-toggle" href="#" id="navbarDropdown" role="button" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
          Dropdown
        </a>
        <div class="dropdown-menu" aria-labelledby="navbarDropdown">
          <a class="dropdown-item" href="#">Action</a>
          <a class="dropdown-item" href="#">Another action</a>
          <div class="dropdown-divider"></div>
          <a class="dropdown-item" href="#">Something else here</a>
        </div>
      </li>
      <li class="nav-item">
        <a class="nav-link disabled" href="#">Disabled</a>
      </li>
    </ul>
    <form class="form-inline my-2 my-lg-0">
      <input class="form-control mr-sm-2" type="search" placeholder="Search" aria-label="Search">
      <button class="btn btn-outline-success my-2 my-sm-0" type="submit">Search</button>
    </form>
  </div>
</nav>
</body>

Bootstrap 4 Navbar示例卡在移动模式下

1 个答案: