Bootstrap导航栏折叠按钮没有显示

我正在做一个应用程序与引导，我有一个导航栏，但由于某种原因，当我调整页面链接消失，但切换按钮不显示。Bootstrap导航栏折叠按钮没有显示

这里是我的导航栏：

<nav class="navbar navbar-default"> 
    <div class="container-fluid"> 
    <div class="navbar-header"> 
     <div class="navbar-brand">title</div> 
    </div> 
    <div class="collapse navbar-collapse" id="bs-example-navbar-collapse-1"> 
     <ul class="nav navbar-nav navbar-right"> 
      <li>one</li> 
      <li>two</li> 
      <li>three</li> 
      <li>four</li> 
     </ul> 
    </div> 
</nav>

任何帮助解决这一问题将不胜感激。你还没有

来源

2016-09-13 user2320239

我接过分量回来，你可以[点击这里结果]检查（ https://jsfiddle.net/xg66Lw6b/）。 –

您目前没有在你的代码的切换按钮。试着将下面的崩溃之前，你的导航栏头后：

<button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#myNavbar"> 
    <span class="icon-bar"></span> 
    <span class="icon-bar"></span> 
    <span class="icon-bar"></span> 
    </button>

http://www.w3schools.com/bootstrap/bootstrap_navbar.asp

<link rel="stylesheet" href="http://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css"> 
 
    <script src="https://ajax.googleapis.com/ajax/libs/jquery/1.12.4/jquery.min.js"></script> 
 
    <script src="http://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js"></script> 
 

 
<nav class="navbar navbar-inverse"> 
 
    <div class="container-fluid"> 
 
    <div class="navbar-header"> 
 
     <button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#myNavbar"> 
 
     <span class="icon-bar"></span> 
 
     <span class="icon-bar"></span> 
 
     <span class="icon-bar"></span> 
 
     </button> 
 
     <a class="navbar-brand" href="#">WebSiteName</a> 
 
    </div> 
 
    <div class="collapse navbar-collapse" id="myNavbar"> 
 
     <ul class="nav navbar-nav"> 
 
     <li class="active"><a href="#">Home</a></li> 
 
     <li class="dropdown"> 
 
      <a class="dropdown-toggle" data-toggle="dropdown" href="#">Page 1 <span class="caret"></span></a> 
 
      <ul class="dropdown-menu"> 
 
      <li><a href="#">Page 1-1</a></li> 
 
      <li><a href="#">Page 1-2</a></li> 
 
      <li><a href="#">Page 1-3</a></li> 
 
      </ul> 
 
     </li> 
 
     <li><a href="#">Page 2</a></li> 
 
     <li><a href="#">Page 3</a></li> 
 
     </ul> 
 
     <ul class="nav navbar-nav navbar-right"> 
 
     <li><a href="#"><span class="glyphicon glyphicon-user"></span> Sign Up</a></li> 
 
     <li><a href="#"><span class="glyphicon glyphicon-log-in"></span> Login</a></li> 
 
     </ul> 
 
    </div> 
 
    </div> 
 
</nav> 
 
    
 
<div class="container"> 
 
    <h3>Collapsible Navbar</h3> 
 
    <p>In this example, the navigation bar is hidden on small screens and replaced by a button in the top right corner (try to re-size this window). 
 
    <p>Only when the button is clicked, the navigation bar will be displayed.</p> 
 
</div>

来源

2016-09-13 13:42:26 Benneb10

不要链接w3scools，不是一个很好的参考网站 – dippas

增加了一个切换按钮，因为我可以在你的代码中看到

<div class="navbar-header"> 
     <button type="button" class="navbar-toggle collapsed" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1" aria-expanded="false"> 
     <span class="icon-bar"></span> 
     <span class="icon-bar"></span> 
     <span class="icon-bar"></span> 
     </button> 
     <div class="navbar-brand">title</div> 
</div>

欲了解更多详情，请参阅Navbar documentation (bootstrap)

来源

2016-09-13 13:41:55

Bootstrap导航栏折叠按钮没有显示

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