Buttons don't look right using 'blitzer' theme
When I run a page with buttons and using the blitzer theme, they don't look anything like shown on the demo page [1]. The attachments show the stark differences. This is using 1.8.2 and 1.4.2 downloaded in the last couple of days. Below is the code as being served by the django development server. Can someone tell me what I'm doing wrong?
<!DOCTYPE html>
<html lang="en">
<head>
<script src="/jq/js/jquery-1.4.2.min.js" type="text/javascript"></script>
<link type="text/css" href="/jq/themes/blitzer/ui.theme.css" rel="stylesheet" />
<script src="/jq/js/jquery-ui-1.8.2.custom.min.js" type="text/javascript"></script>
<script>
$(function() {
$("button, input:submit, a", ".demo").button();
});
</script>
</head>
<body>
<div class="demo">
<button>A button element</button>
<input value="A submit button" type="submit">
<a href="#">An anchor</a>
</div><!-- End demo -->
</body>
</html>
[1] http://jqueryui.com/demos/button/