HTML CSS examples for Bootstrap:Dropdown
To disable an item in the dropdown menu, use .disabled class
<!DOCTYPE html> <html> <head> <title>Bootstrap Example</title> <meta name="viewport" content="width=device-width, initial-scale=1"> <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-beta.2/css/bootstrap.min.css"> <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script> <script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.12.6/umd/popper.min.js"></script> <script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-beta.2/js/bootstrap.min.js"></script> </head><!--from ww w. ja v a 2 s. com--> <body> <div class="container"> <h2>Dropdowns</h2> <p>The .active class adds a blue background color to the active link.</p> <p>The .disabled class disables a dropdown item (grey text color and a no-parking-sign on hover).</p> <div class="dropdown"> <button type="button" class="btn btn-primary dropdown-toggle" data-toggle="dropdown"> Dropdown button </button> <div class="dropdown-menu"> <a class="dropdown-item" href="#">Normal</a> <a class="dropdown-item active" href="#">Active</a> <a class="dropdown-item disabled" href="#">Disabled</a> </div> </div> </div> </body> </html>