<!DOCTYPE html>
<html>
<head>
<script src="https://libs.baidu.com/jquery/2.1.4/jquery.min.js"></script>
<script>
$(document).ready(function(){ $("div").delegate("p", "click", function(){ $(this).slideToggle();
});
$("button").click(function(){ $("<p>This is a new paragraph.</p>").insertAfter("button"); });
});
</script>
</head>
<body>
<div style="background-color:yellow">
<p>This is a paragraph.</p>
<p>Click any p element to make it disappear. Including this one.</p>
<button>Insert a new p element after this button</button>
</div>
<p><b>Note:</b> By using the delegate() method, instead of live(), only the p elements inside the div element will be affected.</p>
</body>
</html>