Bootstrap Modal
<!DOCTYPE html> <html lang="en"> <head> <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"> </head> <body> <button type="button" class="btn btn-primary" data-bs-toggle="modal" data-bs-target="#myModal"> Open modal </button> <div class="modal" id="myModal" tabindex="-1"> <div class="modal-dialog"> <div class="modal-content"> <div class="modal-header"> <h5 class="modal-title">Welcome</h5> <button type="button" class="btn-close" data-bs-dismiss="modal"></button> </div> <div class="modal-body"> <p>This is a simple Bootstrap 5 modal.</p> </div> <div class="modal-footer"> <button type="button" class="btn btn-secondary" data-bs-dismiss="modal">Close</button> <button type="button" class="btn btn-primary">Save</button> </div> </div> </div> </div> <script src="https://cdn.jsdelivr.net/npm/bootstrap@5.3.3/dist/js/bootstrap.bundle.min.js"></script> </body> </html>