I keep trying tutorials and keep failing. Can someone please help me see what I'm doing wrong?

Here is the simple tutorial I was trying to follow:
jQuery for Complete Beginners: Part 1

and here is my code:

HTML Code:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Jquery</title>

<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1/jquery.min.js">
$('div p') //selects all paragraphs that exist within a parent div.
$('#something') //selects the element with an id of 'something'
$('.something') //selects the element(s) with a class of 'something'
</script>

<style>
#something{
width: 200px;
height: 200px;
background-color:#F00
}
</style>

<script type="text/javascript"
$('#something').animate({'margin-top': '300px', 'margin-left': '400px'},1000);
</script>

</head>

<body>
<div id="something">YO</div>
</body>
</html>
thanks : )