<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>
<!DOCTYPE HTML>
<html lang="en-US">
<head>
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
<title>Responsive Tiled Photo Gallery</title>
</head>
<body class="no-touch">
<div class="wrap">
<div class="box">
<div class="boxInner">
<img src="http://www.dwuser.com/education/content/creating-responsive-tiled-layout-with-pure-css/images/demo/7.jpg" />
<div class="titleBox">Butterfly</div>
</div>
</div>
<div class="box">
<div class="boxInner">
<img src="http://www.dwuser.com/education/content/creating-responsive-tiled-layout-with-pure-css/images/demo/1.jpg" />
<div class="titleBox">An old greenhouse</div>