Regardless of what I do, the CSS style sheet will not work. I've been trying for days with no luck. Even when I download a demo, some of the style does not work. See here:
https://i.sstatic.net/oXdqd.png (tested in Chrome and Firefox)
So, I made this test code using Google's CDN in hopes that someone else can see what I'm doing wrong.
<html>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<head>
<meta http-equiv="content-type" content="text-html; charset=utf-8" />
<link rel="stylesheet" href="//ajax.googleapis.com/ajax/libs/jqueryui/1.8.23/themes/sunny/jquery-ui.css" type="text/css" />
<title>JQuery UI Test</title>
</head>
<body>
<script src="//ajax.googleapis.com/ajax/libs/jquery/1.8.1/jquery.min.js" type="text/javascript"></script>
<script src="//ajax.googleapis.com/ajax/libs/jqueryui/1.8.23/jquery-ui.min.js" type="text/javascript"></script>
<script type="text/javascript">
</script>
<!-- Accordion -->
<h2 class="demoHeaders">Accordion</h2>
<div id="accordion">
<div>
<h3><a href="#">First</a></h3>
<div>Lorem ipsum dolor sit amet. Lorem ipsum dolor sit amet. Lorem ipsum dolor sit amet.</div>
</div>
<div>
<h3><a href="#">Second</a></h3>
<div>Phasellus mattis tincidunt nibh.</div>
</div>
<div>
<h3><a href="#">Third</a></h3>
<div>Nam dui erat, auctor a, dignissim quis.</div>
</div>
</div>
<!-- Button -->
<h2 class="demoHeaders">Button</h2>
<button id="button">A button element</button>
<form style="margin-top: 1em;">
<div id="radioset">
<input type="radio" id="radio1" name="radio" /><label for="radio1">Choice 1</label>
<input type="radio" id="radio2" name="radio" checked="checked" /><label for="radio2">Choice 2</label>
<input type="radio" id="radio3" name="radio" /><label for="radio3">Choice 3</label>
</div>
</form>
</body>
</html>
This is what I get from the above code: https://i.sstatic.net/YiHQD.png
I would think this should be straightforward, but I must be doing something wrong. Thank you very much in advance!