<html>
<head>
<script src="https://libs.baidu.com/jquery/1.10.2/jquery.min.js">
</script>
<script>
$(document).ready(function(){
$("div").prev().css("background-color","yellow");
});
</script>
</head>
<body>
<h1>What will $("div").prev() select?</h1>
<p>This is a p element.</p>
<h2>This is a heading, and the previous sibling element of a div element</h2>
<div style="border:1px solid black;padding:10px;">This is a div
element.</div>
<p>This is another p element.</p>
<p>This p element is the previous sibling element of a div element.</p>
<div style="border:1px solid black;padding:10px;">
<p>This is a p element inside a div element.</p>
</div>
</body>
</html>