<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>slide demo</title>
<link rel="stylesheet" href="//code.jquery.com/ui/1.11.1/themes/smoothness/jquery-ui.css">
<style>
#toggle {
width: 900px;
height: 30px;
background: #ccc;
}
</style>
<script src="//code.jquery.com/jquery-1.10.2.js"></script>
<script src="//code.jquery.com/ui/1.11.1/jquery-ui.js"></script>
</head>
<body>
<p>Click anywhere to toggle the box.</p>
<div id="toggle">
<div>Hello</div>
</div>
<script>
$("#toggle").click((function () {
return function () {
$(this).animate({
width: "20px"
}, 10);
}
})());
</script>
</body>
</html>