jquery mobile Button is not displaying properly - iphone

I am developing a sample ios app with phonegap for learning purpose. Following is the code that I have used
<html>
<head>
<meta charset="utf-8" />
<meta name="format-detection" content="telephone=no" />
<meta name="viewport" content="user-scalable=no, initial-scale=1, maximum-scale=1, minimum-scale=1, width=device-width, height=device-height, target-densitydpi=device-dpi" />
<link rel="stylesheet" type="text/css" href="css/index.css" />
<link rel="stylesheet" href="http://code.jquery.com/mobile/1.3.1/jquery.mobile-1.3.1.min.css" />
<script src="http://code.jquery.com/mobile/1.3.1/jquery.mobile-1.3.1.min.js"></script>
<title>Hello World</title>
</head>
<body>
<div data-role="page" id="main-page">
<h1>Apache Cordova</h1>
<div data-role="content">
<div data-role="fieldcontain">
<label for="textinput1">
Title
</label>
<input name="" id="textinput1" placeholder="" value="" type="text">
</div>
<a id="share" data-role="button" data-inline="true" data-theme="a" href="#">
Button
</a>
</div>
</div>
<script type="text/javascript" src="cordova.js"></script>
<script type="text/javascript" src="js/index.js"></script>
<!--<script type="text/javascript" src="js/jquery-1.7.1.min.js"></script>-->
<script type="text/javascript">
app.initialize();
</script>
</body>
Now the problem is, while running the application the button is not displaying properly.Please help me out??!!

This line
<!--<script type="text/javascript" src="js/jquery-1.7.1.min.js"></script>-->
Must be uncommented.
<script type="text/javascript" src="js/jquery-1.7.1.min.js"></script>
Because jQuery Mobile needs jQuery. Also, you need to add it before jQuery Mobile's JS file, like this :
<link rel="stylesheet" href="http://code.jquery.com/mobile/1.3.2/jquery.mobile-1.3.2.min.css" />
<script src="http://code.jquery.com/jquery-1.9.1.min.js"></script>
<script src="http://code.jquery.com/mobile/1.3.2/jquery.mobile-1.3.2.min.js"></script>
Hope this helps.

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Spam Master
CREATE NEW FOO
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You're almost there.
Try setting the initial-scale, that should do the trick.
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Yeah I know there is some reading to do ;)
To enable pinch: user-scalable=yes