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<html>
<title>W3.CSS</title>
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" href="4/w3.css">
<body class="w3-container w3-auto">

<h2>Display Alerts</h2>
<p>The w3-panel class can be used to display alerts:</p>

<div class="w3-panel w3-pink">
  <h3>Danger!</h3>
  <p>Red often indicates a dangerous or negative situation.</p>
</div>

<div class="w3-panel w3-orange">
  <h3>Danger!</h3>
  <p>Red often indicates a dangerous or negative situation.</p>
</div>

<div class="w3-panel w3-blue-grey">
  <h3>Danger!</h3>
  <p>Red often indicates a dangerous or negative situation.</p>
</div>

<div class="w3-panel w3-deep-orange">
  <h3>Danger!</h3>
  <p>Red often indicates a dangerous or negative situation.</p>
</div>

<div class="w3-panel w3-black">
  <h3>Danger!</h3>
  <p>Red often indicates a dangerous or negative situation.</p>
</div>

</body>

</html>