Run ❯
<!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="../../cdn.jsdelivr.net/npm/bootstrap%404.6.1/dist/css/bootstrap.min.css"> <script src="../../cdn.jsdelivr.net/npm/jquery%403.6.0/dist/jquery.slim.min.js"></script> <script src="../../cdn.jsdelivr.net/npm/popper.js%401.16.1/dist/umd/popper.min.js"></script> <script src="../../cdn.jsdelivr.net/npm/bootstrap%404.6.1/dist/js/bootstrap.bundle.min.js"></script> </head> <body> <div class="container"> <h2>Nesting Button Groups</h2> <p>Nest button groups to create dropdown menus:</p> <div class="btn-group"> <button type="button" class="btn btn-primary">Apple</button> <button type="button" class="btn btn-primary">Samsung</button> <div class="btn-group"> <button type="button" class="btn btn-primary dropdown-toggle" data-toggle="dropdown"> Sony </button> <div class="dropdown-menu"> <a class="dropdown-item" href="#">Tablet</a> <a class="dropdown-item" href="#">Smartphone</a> </div> </div> </div> </div> </body> </html>