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Result Size: 625 x 565
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<!DOCTYPE html>
<html lang="en">
<head>
  <title>Bootstrap Example</title>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.1.3/css/bootstrap.min.css">
  <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
  <script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.3/umd/popper.min.js"></script>
  <script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.1.3/js/bootstrap.min.js"></script>
</head>
<body>
<div class="container">
  <h2>Alerts</h2>
  <p>Alerts are created with the .alert class, followed by a contextual color classes:</p>
  <div class="alert alert-danger">
    <h3>Danger!</h3>
    <p>This alert box could indicate a dangerous or potentially negative action.</p>
  </div>
  <div class="alert alert-warning">
    <h3>Warning!</h3>
    <p>This alert box could indicate a warning that might need attention.</p>
  </div>
  <div class="alert alert-success">
    <h3>Success!</h3>
    <p>This alert box could indicate a successful or positive action.</p>
  </div>
  <div class="alert alert-primary">
�   <h3>Primary!</h3>
    <p>Indicates an important action.</p>
  </div>
</div>
</body>
</html>
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