abhishek-9ithub/multi-level-menu.html

## multi-level-menu.html
<!DOCTYPE html>
<html lang="en">

<head>
    <title>Multilevel Menu</title>
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width, initial-scale=1">
    <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css">
    <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script>
    <script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js"></script>
    <style>
        aside ul {
            list-style: none;
        }

        aside>nav ul {
            padding: 0;
            margin: 0;
        }

        aside>nav>ul>li {
            display: block;
            position: relative;
        }

        aside>nav>ul>li ul.subdropdown {
            display: none;
        }

        aside>nav>ul li>a.dropmenu.active ul.open {
            display: block;
        }

        aside>nav>ul li>a.dropmenu.active ul.open {
            display: block;
        }

        .subdropdown {
            padding-left: 10px;
        }
    </style>
</head>

<body>

    <div class="jumbotron text-center">
        <h1>Multilevel Menu</h1>
    </div>

    <div class="container">
        <div class="row">
            <div class="col-sm-12">
                <aside>
                    <nav class="sidemenu">
                        <ul class="dropdown">
                            <li><a href="javascript:void(0);">Dashboard</a></li>
                            <li>
                                <a class="dropmenu active" href="javascript:void(0);">User</a>
                                <ul class="subdropdown">
                                    <li><a href="javascript:void(0);">View User</a></li>
                                    <li><a href="javascript:void(0);">Create User</a></li>
                                    <li><a href="javascript:void(0);">Edit User</a></li>
                                </ul>
                            </li>
                            <li><a class="dropmenu" href="javascript:void(0);">Page</a>
                                <ul class="subdropdown">
                                    <li><a href="javascript:void(0);">View Page</a></li>
                                    <li><a href="javascript:void(0);">Create Page</a></li>
                                    <li>
                                        <a class="dropmenu " href="javascript:void(0);">Modify Page</a>
                                        <ul class="subdropdown">
                                            <li><a href="javascript:void(0);">Official</a></li>
                                            <li><a href="javascript:void(0);">Non Official</a></li>
                                        </ul>
                                    </li>
                                </ul>
                            </li>
                        </ul>
                    </nav>
                </aside>
            </div>
        </div>
    </div>

</body>
<script>
    $(function() {
        // on nav ready
        $('.dropmenu.active').parents('.subdropdown').addClass('open').slideDown();
        $('.dropmenu.active').next('.subdropdown').addClass('open').slideDown();

        $('.dropmenu').click(function(e) {
            e.stopPropagation();
            if ($(this).hasClass('active')) {
                $(this).removeClass('active');
                $(this).next('ul').removeClass('open').slideUp();
            } else {
                if ($(this).parents('ul.subdropdown').hasClass('open')) {} else {
                    $('.dropmenu').removeClass('active');
                    $('.subdropdown').removeClass('open').slideUp();
                }
                $(this).addClass('active');
                $(this).next().addClass('open').slideDown();
            }
        })
    })
</script>

</html>