demos/pages-dialog/dialog-noclosebtn.html

<!DOCTYPE html>
<html>
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	<meta name="viewport" content="width=device-width, initial-scale=1">
	<title>Dialog example - jQuery Mobile Demos</title>
	<link rel="stylesheet" href="../../css/themes/default/jquery.mobile.css">
	<link rel="stylesheet" href="../_assets/css/jqm-demos.css">
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</head>
<body>

<div data-role="page" data-close-btn="none" data-dialog="true">
		<div data-role="header">
		<h1>Dialog</h1>
		</div>

		<div role="main" class="ui-content">
		<h1>No close button</h1>
		<p>This is a regular page, styled as a dialog. To create a dialog, just link to a normal page and include a transition and <code>data-rel="dialog"</code> attribute.</p>
			<a href="docs-dialogs.html" data-rel="back" class="ui-btn ui-shadow ui-corner-all ui-btn-b">Ok, I get it</a>
		</div>
	</div>

</body>
</html>