jQuery slideToggle(); bootstrap 3 not smooth animation

JavaScript
1

I am trying to animate my menu bar however it just drops down without the animation playing I have checked to make sure I have jQuery installed and its there. Any ideas why its just drops instead of animating as it should?

Jquerry:

var tab = $('#menu .menu')

tab.on('click', function(){
    $(this).next().slideToggle();

    });


<head>
  <meta content="width=device-width, initial-scale=1" name="viewport">
  <link href="css/bootstrap.min.css" rel="stylesheet">
<link href="css/style.css" rel="stylesheet">
<script src="js/jquery-1.12.0.min.js"></script>
<script src="js/bootstrap.min.js"></script>

<script src="js/custom.js"></script>
</head>
  <body>
    <a class="menu-bar" data-toggle="collapse" href="#menu">
                <img src="http://i.imgur.com/Bu0B6O8.png" alt="Logo" class = "logo">
            </a>
        	<div class="collapse menu" id="menu">

                <ul class="list-inline">

                    <li><a href="#home">Home</a></li>
                    <li><a href="#about">About</a></li>
                    <li><a href="#service">Services</a></li>
                    <li><a href="#info">Works</a></li>
                    <li><a href="#contact">Contact</a></li>
                </ul>
        	</div>



<section id="home" class="home">
    <div class="container">
        <div class="row">
            <div class="col-lg-12">
              <h1>Home</h1>
            </div>
        </div>
    </div>
</section>

<section id="about" class="about">
    <div class="container">
        <div class="row">
            <div class="col-lg-12">
                <h1>Profolio</h1>
                <!-- Trigger the modal with a button -->
<button type="button" class="btn btn-info btn-lg" data-toggle="modal" data-target="#myModal">Open Modal</button>

<!-- Modal -->
<div id="myModal" class="modal fade" role="dialog">
  <div class="modal-dialog">

    <!-- Modal content-->
    <div class="modal-content">
      <div class="modal-header">
        <button type="button" class="close" data-dismiss="modal">&times;</button>
        <h4 class="modal-title">Modal Header</h4>
      </div>
      <div class="modal-body">
        <p>Some text in the modal.</p>
      </div>
      <div class="modal-footer">
        <button type="button" class="btn btn-default" data-dismiss="modal">Close</button>
      </div>
    </div>

  </div>
</div>
            </div>
        </div>
    </div>
</section>

<section id="service" class="service">
    <div class="container">
        <div class="row">
            <div class="col-lg-12">
                <h1>Service</h1>
            </div>
        </div>
    </div>
</section>

<!-- Contact Section -->
<section id="info" class="info">
    <div class="container">
        <div class="row">
            <div class="col-lg-12">
                <h1>Info</h1>
            </div>
        </div>
    </div>
</section>


<section id="contact" class="contact">
    <div class="container">
        <div class="row">
            <div class="col-lg-12">
                <h1>Contact us</h1>
            </div>
        </div>
    </div>
</section>

</body>

.menu-bar {
top: 20px;
margin: 0 auto;
display: table;}
.logo {

    width: 100px;
    height: 50px;


}
.menu {
    display: none;
    width: 100%;
    padding: 30px 10px 50px;
    margin: 0 auto;
    text-align: center;
    background-color: #fff;
}
.menu ul {
    margin-bottom: 0;
}
.menu a {
    color: #333;
    text-transform: uppercase;
    opacity: 0.8;
}
.menu a:hover {
    text-decoration: none;
    opacity: 1;
}
/*deviders*/
.home{
    height: 100%;
    padding-top: 150px;
    text-align: center;
    background: #423840;
}

.about {
    height: 100%;
    padding-top: 150px;
    text-align: center;
    background: #8dd8f8;
}

.service {
    height: 100%;
    padding-top: 150px;
    text-align: center;
    background: #9D714F;
}

.info{
    height: 100%;
    padding-top: 150px;
    text-align: center;
    background: #eee;
}

.contact {
    height: 100%;
    padding-top: 150px;
    text-align: center;
    background: #fff;
}
2

Hi @GarrySsson! You’re attempting to select an element with the class menu being child of an element with the ID menu, but there is no such element. Maybe you meant #menu.menu (in which case the class selector would be redundant)? Within the event handler $(this).next() would be the #home section then, though.

Also, is that JS snippet your custom.js in the markup? In this case you’d need to wrap it in a $(document).ready handler, as otherwise the jQuery selector won’t return anything. Or even better, just put all your JS to the end of the body so that it will be loaded/evaluated when the DOM is completely parsed anyway. This also has the advantage that loading jQuery doesn’t delay your site from being displayed.

3

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