<!DOCTYPE html>
<html>
<title>W3.CSS</title>
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" href="https://www.w3schools.com/w3css/4/w3.css">
<body>
<div class="w3-container">
<h2>Image Dropdown</h2>
<p>Move the mouse over the image:</p>
<div class="w3-dropdown-hover"><img src="img_snowtops.jpg" alt="Monterosso" style="width:20%">
<div class="w3-dropdown-content" style="width:300px"><br>
<img src="img_snowtops.jpg" alt="Norway" style="width:100%">
<a href="#" class="w3-border">Visit Norway »</a>
</div>
</div>
</div>
</body>
</html>