Need help asap. Jquery mobile. Not taking $ . need to get this asap. Help plz

Need help asap. Jquery mobile. Not taking $ . need to get this asap. Help plz

below is my html:

<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8" />
<title>pal.html</title>
<meta name="generator" content="BBEdit 16.0" />
<link rel="stylesheet" href="http://code.jquery.com/mobile/1.2.0/jquery.mobile-1.2.0.min.css" />
<script src="http://code.jquery.com/jquery-1.8.2.min.js"></script>
<script src="http://code.jquery.com/mobile/1.2.0/jquery.mobile-1.2.0.min.js"></script>
<link rel="stylesheet" href="navigation.css" /> 
<script>
$(document).on( "mobileinit", function() {
    $.mobile.defaultPageTransition = "slide";
}); 
 
$( document ).on( "pageinit", "[data-role='page'].demo-page", function() {
$(document).on('expand', '.ui-collapsible', function() {
$(this).children().next().hide();
    $(this).children().next().slideDown();
   
});
});
</script>
<style>
div.static{
float: left;
width: 31%;
height: 80%;
box-shadow: 2px 2px 2px rgba(121, 112, 107, 0.6);
border: 1px solid rgba(121, 112, 107, 0.6);
border-radius: 8px;
margin-left: 100px;
margin-right: 80px;
margin-top: 20px;
margin-bottom: 20px;
border-image: initial;
}
div img{
    display:inline-block;
}
div ul{
display:inline-block;
}
}
</style>
</head>
<body>
<div data-role="page">
    <div data-role="content">
        <div data-role="collapsible" id="my-collapsible">
<div class="static" id="click">
<div>
<img src="Diamond Round.gif" alt="Diamond Round.gif" width="48" height="48"/>
<ul>
<li>Text1</li>
<li>Text2</li>
<li>Text3</li>
</ul>
<div>
</div>
</div>
</div>
</div>

<div data-role="page">
    <div data-role="content">
<div id="slidedown" class="static" data-role="collapsible">
<div>
<img src="Diamond Round.gif" alt="Diamond Round.gif" width="48" height="48"/>
<ul>
<li>Text1</li>
<li>Text2</li>
<li>Text3</li>
</ul>
<div>
</div>
</div>
</div>
</body>
</html>