<!DOCTYPE html>
<html>
<title>W3.CSS</title>
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" href="/lib/w3.css">
<body>
<div class="w3-container w3-section">
<div class="w3-round w3-teal w3-padding w3-margin-bottom">Round</div>
<div class="w3-round-large w3-teal w3-padding w3-margin-bottom">Rounder</div>
<div class="w3-round-xlarge w3-teal w3-padding w3-margin-bottom">Rounder</div>
<div class="w3-round-jumbo w3-teal w3-padding w3-margin-bottom">Roundest</div>
</div>
</body>
</html>