<body>
<div class="page">
</div>
</body>body {
background: url('http://dovetail-demo.squarespace.com/assets/concrete-texture.png');
padding: 0;
margin: 0;
}
.page {
box-shadow: 0 0 8px 0 rgba(0,0,0,0.2);
background: #fff;
width: 400px;
margin: 0 auto;
height: 100%;
}