<!DOCTYPE html>
<html>
<head>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.7.1/jquery.min.js"></script>
<script>
$(document).ready(function(){
$("div").last().css("background-color", "yellow");
});
</script>
</head>
<body>
<h1>Welcome to My Homepage</h1>
<p>This is a paragraph.</p>
<div style="border: 1px solid black;">
<p>A paragraph in a div.</p>
<p>Another paragraph in a div.</p>
</div>
<br>
<div style="border: 1px solid black;">
<p>A paragraph in another div.</p>
<p>Another paragraph in another div.</p>
</div>
<br>
<div style="border: 1px solid black;">
<p>A paragraph in another div.</p>
<p>Another paragraph in another div.</p>
</div>
</body>
</html>