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<!DOCTYPE html> <html lang="en"> <head> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1"> <title>Bootstrap 4 New Alert Boxes</title> <link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/bootstrap@4.6.0/dist/css/bootstrap.min.css"> <script src="https://code.jquery.com/jquery-3.5.1.min.js"></script> <script src="https://cdn.jsdelivr.net/npm/bootstrap@4.6.0/dist/js/bootstrap.bundle.min.js"></script> <style> .bs-example{ margin: 20px; } </style> </head> <body> <div class="bs-example"> <!-- Primary Alert --> <div class="alert alert-primary alert-dismissible fade show"> <strong>Primary!</strong> This is a simple primary alert box. <button type="button" class="close" data-dismiss="alert">×</button> </div> <!-- Secondary Alert --> <div class="alert alert-secondary alert-dismissible fade show"> <strong>Secondary!</strong> This is a simple secondary alert box. <button type="button" class="close" data-dismiss="alert">×</button> </div> <!-- Dark Alert --> <div class="alert alert-dark alert-dismissible fade show"> <strong>Dark!</strong> This is a simple dark alert box. <button type="button" class="close" data-dismiss="alert">×</button> </div> <!-- Light Alert --> <div class="alert alert-light alert-dismissible fade show"> <strong>Light!</strong> This is a simple light alert box. <button type="button" class="close" data-dismiss="alert">×</button> </div> </div> </body> </html>
