Judith wants to use CSS properties to set the width of the image using percentage (%). Relative to which element will the width be calculated?
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Sunny day</title>
</head>
<body>
<div>
<p>It was sunny today. I love this weather!</p>
<img src="sun.gif">
</div>
</body>
</html>