<!DOCTYPE html>
<html>
<head>
<title>Title of the document</title>
<style>
p:last-child {
background: #8ebf42;
}
</style>
</head>
<body>
<h2>:last-child selector example</h2>
<p>Paragraph 1</p>
<p>Paragraph 2</p>
<p>Paragraph 3</p>
<p>Paragraph 4</p>
</body>
</html>