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<!DOCTYPE html> <html> <head> <meta name="viewport" content="width=device-width, initial-scale=1"> <link rel="stylesheet" href="/lib/bootstrap.min.css"> <script src="/lib/jquery-1.12.2.min.js"></script> <script src="/lib/bootstrap.min.js"></script> </head> <body> <div class="container"> <h2>Dropdowns</h2> <p>The .dropup class makes the dropdown menu expand upwards instead of downwards:</p> <div class="dropup"> <button class="btn btn-default dropdown-toggle" type="button" data-toggle="dropdown">Dropup Example <span class="caret"></span></button> <ul class="dropdown-menu"> <li><a href="#">HTML</a></li> <li><a href="#">CSS</a></li> <li><a href="#">JavaScript</a></li> <li class="divider"></li> <li><a href="#">About Us</a></li> </ul> </div> </div> </body> </html>