<html>
<head>
<link rel="stylesheet" href="https://libs.baidu.com/jquerymobile/1.4.2/jquery.mobile.min.css">
<script src="https://libs.baidu.com/jquery/1.10.2/jquery.min.js"></script>
<script src="https://libs.baidu.com/jquerymobile/1.4.2/jquery.mobile.min.js"></script>
</head>
<body>
<div data-role="page" id="pageone">
<div data-role="header">
<h1>可折叠块</h1>
</div>
<div data-role="content">
<div data-role="collapsible" data-collapsed-icon="arrow-d" data-expanded-icon="arrow-u">
<h1>data-collapsed-icon 规定按钮的图标。</h1>
<p>data-expanded-icon 规定内容被展开时按钮的图标。</p>
</div>
</div>
<div data-role="footer">
<h1>页脚</h1>
</div>
</div>
</body>
</html>