<!DOCTYPE html>
<html>
<head>
<script src="/lib/jquery-1.12.2.min.js"></script>
<script>
$(document).ready(function(){
$("button").click(function(){
alert($("p").html());
});
});
</script>
</head>
<body>
<button>Return the content of the p element</button>
<p>This is a <b>paragraph</b>.</p>
</body>
</html>