"TEST: Simple animated navbar"
Bootstrap 3.3.0 Snippet by mrmccormack

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<link href="//maxcdn.bootstrapcdn.com/bootstrap/3.3.0/css/bootstrap.min.css" rel="stylesheet" id="bootstrap-css">
<script src="//maxcdn.bootstrapcdn.com/bootstrap/3.3.0/js/bootstrap.min.js"></script>
<script src="//code.jquery.com/jquery-1.11.1.min.js"></script>
<!------ Include the above in your HEAD tag ---------->
<!-- Begin Navbar -->
<div id="nav">
<div class="navbar navbar-inverse navbar-fixed-top" data-spy="affix" data-offset-top="100">
<div class="container">
<div class="navbar-header">
<button type="button" class="navbar-toggle collapsed" data-toggle="collapse" data-target="#navbar" aria-expanded="false" aria-controls="navbar">
<span class="sr-only">Toggle navigation</span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
</button>
<a class="navbar-brand" href="#"><img class="img-responsive logo" src="https://cdn4.iconfinder.com/data/icons/adore/118/Camera.png" alt=""></a>
</div>
<div id="navbar" class="collapse navbar-collapse">
<ul class="nav navbar-nav navbar-right">
<li class="active"><a href="#">Home</a>
</li>
<li><a href="#about">About</a>
</li>
<li><a href="#contact">Contact</a>
</li>
</ul>
</div>
<!--/.nav-collapse -->
</div>
<!--/.contatiner -->
</div>
</div>
<!-- Main jumbotron for a primary marketing message or call to action -->
<div class="jumbotron">
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/* CSS used here will be applied after bootstrap.css
Ref: http://www.bootply.com/d8RMa03wW7
*/
html,body {
height:100%;
padding-top:70px;
}
section {
height:calc(90% - 50px);
}
.affix {
padding:0px;
-webkit-transition:padding 0.2s linear;
-moz-transition:padding 0.2s linear;
-o-transition:padding 0.2s linear;
transition:padding 0.2s linear;
}
.affix-top {
padding-top:15px;
padding-bottom:15px;
-webkit-transition:padding 0.5s linear;
-moz-transition:padding 0.5s linear;
-o-transition:padding 0.5s linear;
transition:padding 0.5s linear;
}
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$(window).scroll(function() {
if ($(document).scrollTop() > 150) {
alert('hi');
$('.logo').height(200);
}
else {
$('.logo').height(100);
});
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