<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 ---------->
<div class="container">
<div class="row">
<div class="row">
<div class="col-sm-6 col-md-3">
<div class="thumbnail shadow-depth-1">
<div class="caption">
<h3>Shadow Depth 1</h3>
</div>
</div>
</div>
<div class="col-sm-6 col-md-3">
<div class="thumbnail shadow-depth-2">
<div class="caption">
<h3>Shadow Depth 2</h3>
</div>
</div>
</div>
<div class="col-sm-6 col-md-3">
<div class="thumbnail shadow-depth-3">
<div class="caption">
<h3>Shadow Depth 3</h3>
</div>
</div>
</div>
<div class="col-sm-6 col-md-3">
<div class="thumbnail shadow-depth-4">
<div class="caption">
<h3>Shadow Depth 4</h3>
</div>
</div>
</div>
</div>
</div>
</div>
.container{ margin-top:15px;}
.thumbnail {
background-color: #006064;
height: 200px;
border: none;
border-radius: 0px;
text-align:center;
}
.thumbnail h3{color: #fff;line-height: 174px;margin: 0px;}
.shadow-depth-1{
-webkit-box-shadow: 0 2px 5px 0 rgba(0, 0, 0, 0.16), 0 2px 10px 0 rgba(0, 0, 0, 0.12);
-moz-box-shadow: 0 2px 5px 0 rgba(0, 0, 0, 0.16), 0 2px 10px 0 rgba(0, 0, 0, 0.12);
box-shadow: 0 2px 5px 0 rgba(0, 0, 0, 0.16), 0 2px 10px 0 rgba(0, 0, 0, 0.12);
}
.shadow-depth-2{
-webkit-box-shadow: 0 8px 17px 0 rgba(0, 0, 0, 0.2), 0 6px 20px 0 rgba(0, 0, 0, 0.19);
-moz-box-shadow: 0 8px 17px 0 rgba(0, 0, 0, 0.2), 0 6px 20px 0 rgba(0, 0, 0, 0.19);
box-shadow: 0 8px 17px 0 rgba(0, 0, 0, 0.2), 0 6px 20px 0 rgba(0, 0, 0, 0.19);
}
.shadow-depth-3{
-webkit-box-shadow: 0 12px 15px 0 rgba(0, 0, 0, 0.24), 0 17px 50px 0 rgba(0, 0, 0, 0.19);
-moz-box-shadow: 0 12px 15px 0 rgba(0, 0, 0, 0.24), 0 17px 50px 0 rgba(0, 0, 0, 0.19);
box-shadow: 0 12px 15px 0 rgba(0, 0, 0, 0.24), 0 17px 50px 0 rgba(0, 0, 0, 0.19);
}
.shadow-depth-4{
-webkit-box-shadow: 0 16px 28px 0 rgba(0, 0, 0, 0.22), 0 25px 55px 0 rgba(0, 0, 0, 0.21);
-moz-box-shadow: 0 16px 28px 0 rgba(0, 0, 0, 0.22), 0 25px 55px 0 rgba(0, 0, 0, 0.21);
box-shadow: 0 16px 28px 0 rgba(0, 0, 0, 0.22), 0 25px 55px 0 rgba(0, 0, 0, 0.21);
}