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<!DOCTYPE html> <html> <head> <meta name="viewport" content="width=device-width, initial-scale=1"> <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.4.1/css/bootstrap.min.css"> <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.7.1/jquery.min.js"></script> <script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.4.1/js/bootstrap.min.js"></script> <style> .dropdown-submenu { position: relative; } .dropdown-submenu .dropdown-menu { top: 0; left: 100%; margin-top: -1px; } </style> </head> <body> <div class="container"> <h2>Multi-Level Dropdowns</h2> <p>In this example, we have created a .dropdown-submenu class for multi-level dropdowns (see style section above).</p> <p>Note that we have added jQuery to open the multi-level dropdown on click (see script section below).</p> <div class="dropdown"> <button class="btn btn-default dropdown-toggle" type="button" data-toggle="dropdown">Tutorials <span class="caret"></span></button> <ul class="dropdown-menu"> <li><a tabindex="-1" href="#">HTML</a></li> <li><a tabindex="-1" href="#">CSS</a></li> <li class="dropdown-submenu"> <a class="test" tabindex="-1" href="#">New dropdown <span class="caret"></span></a> <ul class="dropdown-menu"> <li><a tabindex="-1" href="#">2nd level dropdown</a></li> <li><a tabindex="-1" href="#">2nd level dropdown</a></li> <li class="dropdown-submenu"> <a class="test" href="#">Another dropdown <span class="caret"></span></a> <ul class="dropdown-menu"> <li><a href="#">3rd level dropdown</a></li> <li><a href="#">3rd level dropdown</a></li> </ul> </li> </ul> </li> </ul> </div> </div> <script> $(document).ready(function(){ $('.dropdown-submenu a.test').on("click", function(e){ $(this).next('ul').toggle(); e.stopPropagation(); e.preventDefault(); }); }); </script> </body> </html>
