Navbar nicht kollabiert

Question

Ich habe diese in meinem Header anstatt unter dem Körper, wie es die Bootstrap benötigt jQuery auszuführen:

<script src="https://code.jquery.com/jquery-3.1.0.min.js" integrity="sha256-cCueBR6CsyA4/9szpPfrX3s49M9vUU5BgtiJj06wt/s=" crossorigin="anonymous"></script> 
    <script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js" integrity="sha384-Tc5IQib027qvyjSMfHjOMaLkfuWVxZxUPnCJA7l2mCWNIpG9mGCD8wGNIcPD7Txa" crossorigin="anonymous"></script> 
    <script src="https://ajax.googleapis.com/ajax/libs/jquery/1.8.3/jquery.min.js"></script> 

Und das ist die eigentliche navbar Teil. Ich bin mir ziemlich sicher, dass etwas fehlt, kann aber nicht sehen, was ich falsch mache:

<nav class="navbar navbar-default navbar-fixed-top"> 
    <div class="container-fluid"> 
     <!-- Brand and toggle get grouped for better mobile display --> 
     <div class="navbar-header">  
      <button type="button" class="navbar-toggle collapsed navbar-right " data-toggle="collapse" data-target="#bs-example-navbar-collapse-1" aria-expanded="false"> 

      <span class="sr-only">Toggle navigation</span> 
      <span class="icon-bar"></span> 
      <span class="icon-bar"></span> 
      <span class="icon-bar"></span> 
      </div> 
      </button> 
     </div> 

     <!-- Collect the nav links, forms, and other content for toggling --> 
     <div class="collapse navbar-collapse navbar-right" id="bs-example-navbar-collapse-1"> 
      <div class="navbar-collapse collapse"> 
       <ul class="nav navbar-nav"> 
        <li id="button0"><a href="#landing-page">Home</a></li> 
        <li id="button1"><a href="#what-we-do">What We Do</a></li> 
        <li id="button2"><a href="#contact">Contact Us</a></li> 
        </div> 
       </ul> 
      </div> 
     </div><!-- /.navbar-collapse --> 
    </div><!-- /.container-fluid --> 
</nav> 

Answer 1

HTML einige unerwünschte div Änderung HTML

<nav class="navbar navbar-default navbar-fixed-top"> 
     <div class="container-fluid"> 
      <!-- Brand and toggle get grouped for better mobile display --> 
      <div class="navbar-header"> 
       <button type="button" class="navbar-toggle collapsed navbar-right " data-toggle="collapse" data-target="#bs-example-navbar-collapse-1" aria-expanded="false"> 

        <span class="sr-only">Toggle navigation</span> 
        <span class="icon-bar"></span> 
        <span class="icon-bar"></span> 
        <span class="icon-bar"></span> 

       </button> 
      </div> 
     </div> 

     <!-- Collect the nav links, forms, and other content for toggling --> 
     <div class="collapse navbar-collapse navbar-right" id="bs-example-navbar-collapse-1"> 
      <div class="navbar-collapse"> 
       <ul class="nav navbar-nav"> 
        <li id="button0"><a href="#landing-page">Home</a></li> 
        <li id="button1"><a href="#what-we-do">What We Do</a></li> 
        <li id="button2"><a href="#contact">Contact Us</a></li> 

       </ul> 
      </div> 
     </div> 

    </nav> 

https://jsfiddle.net/o6p71fko/1/

Answer 2

1. enthalten keine jQuery zweimal (Sie haben Version 3.1.0 und 1.8.3)
2. einschließen Bootstrap CSS
3. einschließen Bootstrap-Kollaps-Plugin: https://getbootstrap.com/javascript/#collapse

Answer 3

Sie haben zwei div mit navbar-Zusammenbruch Zusammenbruch Klassen hinzugefügt, entfernen Sie die innere vor ul.

Siehe Demo

<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-default navbar-fixed-top"> 
 
    <div class="container-fluid"> 
 
     <!-- Brand and toggle get grouped for better mobile display --> 
 
     <div class="navbar-header">  
 
      <button type="button" class="navbar-toggle collapsed navbar-right " data-toggle="collapse" data-target="#bs-example-navbar-collapse-1" aria-expanded="false"> 
 

 
      <span class="sr-only">Toggle navigation</span> 
 
      <span class="icon-bar"></span> 
 
      <span class="icon-bar"></span> 
 
      <span class="icon-bar"></span>     
 
      </button> 
 
     </div> 
 

 
     <!-- Collect the nav links, forms, and other content for toggling --> 
 
     <div class="collapse navbar-collapse navbar-right" id="bs-example-navbar-collapse-1"> 
 
      
 
       <ul class="nav navbar-nav"> 
 
        <li id="button0"><a href="#landing-page">Home</a></li> 
 
        <li id="button1"><a href="#what-we-do">What We Do</a></li> 
 
        <li id="button2"><a href="#contact">Contact Us</a></li> 
 
        
 
       </ul> 
 
     
 
     
 
    </div><!-- /.container-fluid --> 
 
</nav>

Answer 4

Entfernen Sie die div in Zeile 17 und seinem schließenden Tag. Entfernen Sie außerdem die zusätzlichen Abschlussdivis in Zeile 11 und 22.

<nav class="navbar navbar-default navbar-fixed-top"> 

    <div class="container-fluid"> 
    <!-- Brand and toggle get grouped for better mobile display --> 
     <div class="navbar-header">  
      <button type="button" class="navbar-toggle collapsed navbar-right " data-toggle="collapse" data-target="#bs-example-navbar-collapse-1" aria-expanded="false"> 

       <span class="sr-only">Toggle navigation</span> 
       <span class="icon-bar"></span> 
       <span class="icon-bar"></span> 
       <span class="icon-bar"></span> 

      </button> 
     </div> 

     <!-- Collect the nav links, forms, and other content for toggling --> 
     <div class="collapse navbar-collapse navbar-right" id="bs-example-navbar-collapse-1"> 

      <ul class="nav navbar-nav"> 
       <li id="button0"><a href="#landing-page">Home</a></li> 
       <li id="button1"><a href="#what-we-do">What We Do</a></li> 
       <li id="button2"><a href="#contact">Contact Us</a></li> 
      </ul> 

     </div><!-- /.navbar-collapse --> 

    </div><!-- /.container-fluid --> 

</nav>