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<!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">
<p>Buttons:</p>
<button class="w3-btn">Button</button>
<button class="w3-btn w3-teal">Button</button>
<button class="w3-btn" disabled>Button</button>

<p>Grouped Buttons:</p>
<div class="w3-btn-group">
  <button class="w3-btn">Button</button>
  <button class="w3-btn w3-teal">Button</button>
  <button class="w3-btn" disabled>Button</button>
</div>
</div>

</body>
</html>