<!doctype html>
<html lang = "en">
<head>
<script src="//code.jquery.com/jquery-1.10.2.js"></script>
<meta charset="utf-8">
<style>
p
{
margin: 8px;
font-size: 16px;
}
.selected
{
color: red;
}
.highlight
{
background: yellow;
}
</style>
</head>
<body>
<p>vishal</p>
<p>kumar</p>
<p>neeraj</p>
<script>
$("p:last").addClass("selected highlight");
</script>
</body>
</html>