<link href="//netdna.bootstrapcdn.com/bootstrap/3.0.0/css/bootstrap.min.css" rel="stylesheet" id="bootstrap-css"> <script src="//netdna.bootstrapcdn.com/bootstrap/3.0.0/js/bootstrap.min.js"></script> <script src="//code.jquery.com/jquery-1.11.1.min.js"></script> <!------ Include the above in your HEAD tag ----------> <div id="tile" class="tile"></div>

.tile{ float:left; margin:1px; width:450px; height:450px; overflow:hidden; background-image:url(http://www.placehold.it/450x450); -webkit-background-size: 450px; background-size: ; background-position: center; transition:all 0.5s ease; } #tile:hover { background-size:550px 550px; }