<!DOCTYPE html>
<html>
<head>
<script src="/lib/jquery-1.12.2.min.js"></script>
<script>
$(document).ready(function(){
$("button").click(function(){
$("p").wrap(function(){
return "<div></div>"
});
});
});
</script>
<style>
div {
background-color: yellow;
padding: 10px;
}
</style>
</head>
<body>
<p>This is a paragraph.</p>
<button>Wrap a div element around the p element</button>
</body>
</html>