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<html lang="en"><head> <title>Bootstrap Example</title> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1"> <link href="https://cdn.jsdelivr.net/npm/bootstrap@5.3.3/dist/css/bootstrap.min.css" rel="stylesheet"> <script src="https://cdn.jsdelivr.net/npm/bootstrap@5.3.3/dist/js/bootstrap.bundle.min.js"></script></head><body><div class="container mt-3"> <h2>Alerts</h2> <p>The button with class="btn-close" and data-bs-dismiss="alert" is used to close the alert box.</p> <p>The alert-dismissible class aligns the button to the right.</p> <div class="alert alert-success alert-dismissible"> <button type="button" class="btn-close" data-bs-dismiss="alert"></button> <strong>Success!</strong> This alert box could indicate a successful or positive action. </div> <div class="alert alert-info alert-dismissible"> <button type="button" class="btn-close" data-bs-dismiss="alert"></button> <strong>Info!</strong> This alert box could indicate a neutral informative change or action. </div> <div class="alert alert-warning alert-dismissible"> <button type="button" class="btn-close" data-bs-dismiss="alert"></button> <strong>Warning!</strong> This alert box could indicate a warning that might need attention. </div> <div class="alert alert-danger alert-dismissible">