<!DOCTYPE html>
<html>
<head>
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" href="http://code.jquery.com/mobile/1.4.5/jquery.mobile-1.4.5.min.css">
<script src="http://code.jquery.com/jquery-1.11.3.min.js"></script>
<script src="http://code.jquery.com/mobile/1.4.5/jquery.mobile-1.4.5.min.js"></script>
<style>
.ui-block-a, .ui-block-b, .ui-block-c {
background-color: lightgray;
border: 1px solid black;
height: 100px;
font-weight: bold;
text-align: center;
padding: 30px;
}
</style>
</head>
<body>
<div data-role="page" id="pageone">
<div data-role="header">
<h1>Customized Columns</h1>
</div>
<div data-role="main" class="ui-content">
<p>Three-column Styled Layout:</p>
<div class="ui-grid-b">
<div class="ui-block-a"><span>First Column</span></div>
<div class="ui-block-b"><span>Second Column</span></div>
<div class="ui-block-c"><span>Third Column</span></div>
</div>
</div>
</div>
</body>
</html>