<!DOCTYPE html>
<html>
<title>W3.CSS</title>
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" href="../lib/w3.css">
<style>
.w3-btn{width:300px;}
</style>
<body class="w3-container">
<h2>Button Shapes</h2>
<p><button class="w3-btn">Normal</button></p>
<p><button class="w3-btn w3-round-small">Round Small</button></p>
<p><button class="w3-btn w3-round">Round Normal</button></p>
<p><button class="w3-btn w3-round-large">Round Large</button></p>
<p><button class="w3-btn w3-round-xlarge">Round xLarge</button></p>
<p><button class="w3-btn w3-round-xxlarge">Round xxLarge</button></p>
</body>
</html>