jQuery(document).ready(function($) {
$.fn.accomodateFooter = function() {
var footerHeight = $('footer').outerHeight();
$(this).css({
'padding-bottom': footerHeight + 'px'
});
}
$('footer').on('DOMSubtreeModified', function() {
$('body').accomodateFooter();
})
$(window).on('resize', function() {
$('body').accomodateFooter();
})
$('body').accomodateFooter();
window.addMoreContentToFooter = function() {
var f = $('footer');
f.append($('<p />', {
text: "Human give me attention meow flop over sun bathe licks your face wake up wander around the house making large amounts of noise jump on top of your human's bed and fall asleep again. Throwup on your pillow sun bathe. The dog smells bad jump around on couch, meow constantly until given food, so nap all day, yet hiss at vacuum cleaner."
}))
.append($('<hr />'));
}
});
body {
min-height: 100vh;
position: relative;
}
footer {
background-color: rgba(0, 0, 0, .65);
color: white;
position: absolute;
bottom: 0;
width: 100%;
padding: 1.5rem;
display: block;
}
footer hr {
border-top: 1px solid rgba(0, 0, 0, .42);
border-bottom: 1px solid rgba(255, 255, 255, .21);
}
<link href="http://v4-alpha.getbootstrap.com/dist/css/bootstrap.min.css" rel="stylesheet">
<link href="http://v4-alpha.getbootstrap.com/examples/starter-template/starter-template.css" rel="stylesheet">
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.0.0/jquery.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/tether/1.2.0/js/tether.min.js"></script>
<script src="http://v4-alpha.getbootstrap.com/dist/js/bootstrap.min.js"></script>
<nav class="navbar navbar-toggleable-md navbar-inverse bg-inverse fixed-top">
<button class="navbar-toggler navbar-toggler-right" type="button" data-toggle="collapse" data-target="#navbarsExampleDefault" aria-controls="navbarsExampleDefault" aria-expanded="false" aria-label="Toggle navigation">
<span class="navbar-toggler-icon"></span>
</button>
<a class="navbar-brand" href="#">Navbar</a>
<div class="collapse navbar-collapse" id="navbarsExampleDefault">
<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">
<a class="nav-link disabled" href="#">Disabled</a>
</li>
<li class="nav-item dropdown">
<a class="nav-link dropdown-toggle" href="http://example.com" id="dropdown01" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">Dropdown</a>
<div class="dropdown-menu" aria-labelledby="dropdown01">
<a class="dropdown-item" href="#">Action</a>
<a class="dropdown-item" href="#">Another action</a>
<a class="dropdown-item" href="#">Something else here</a>
</div>
</li>
</ul>
<form class="form-inline my-2 my-lg-0">
<input class="form-control mr-sm-2" type="text" placeholder="Search">
<button class="btn btn-outline-success my-2 my-sm-0" type="submit">Search</button>
</form>
</div>
</nav>
<div class="container">
<div class="starter-template">
<h1>Feed that footer - not a game (yet!)</h1>
<p class="lead">You will notice the body bottom padding is growing to accomodate the height of the footer as you feed it (so the page contents do not get covered by it).</p><button class="btn btn-warning" onclick="window.addMoreContentToFooter()">Feed that footer</button>
<hr />
<blockquote class="lead"><strong>Note:</strong> I used jQuery <code>v3.0.0</code> and Bootstrap <code>v4-alpha</code> but there is no reason why it shouldn't work with lower versions of each.</blockquote>
</div>
</div>
<footer>I am a footer with dynamic content.
<hr />
</footer>