<link href="//netdna.bootstrapcdn.com/bootstrap/3.2.0/css/bootstrap.min.css" rel="stylesheet" id="bootstrap-css"> <script src="//netdna.bootstrapcdn.com/bootstrap/3.2.0/js/bootstrap.min.js"></script> <script src="//code.jquery.com/jquery-1.11.1.min.js"></script> <!------ Include the above in your HEAD tag ----------> <div class="col-md-3"> <div id="MainMenu"> <div class="list-group panel"> <a href="#demo3" class="list-group-item list-group-item-success" data-toggle="collapse" data-parent="#MainMenu">Item 3</a> <div class="collapse" id="demo3"> <a href="#SubMenu1" class="list-group-item" data-toggle="collapse" data-parent="#SubMenu1">Subitem 1 <i class="fa fa-caret-down"></i></a> <div class="collapse list-group-submenu" id="SubMenu1"> <a href="#" class="list-group-item" data-parent="#SubMenu1">Subitem 1 a</a> <a href="#" class="list-group-item" data-parent="#SubMenu1">Subitem 2 b</a> <a href="#SubSubMenu1" class="list-group-item" data-toggle="collapse" data-parent="#SubSubMenu1">Subitem 3 c <i class="fa fa-caret-down"></i></a> <div class="collapse list-group-submenu list-group-submenu-1" id="SubSubMenu1"> <a href="#" class="list-group-item" data-parent="#SubSubMenu1">Sub sub item 1</a> <a href="#" class="list-group-item" data-parent="#SubSubMenu1">Sub sub item 2</a> </div> <a href="#" class="list-group-item" data-parent="#SubMenu1">Subitem 4 d</a> </div> <a href="#SubMenu2" class="list-group-item" data-toggle="collapse" data-parent="#SubMenu2">Subitem 2 <i class="fa fa-caret-down"></i></a> <div class="collapse list-group-submenu" id="SubMenu2"> <a href="#" class="list-group-item" data-parent="#SubMenu2">Subitem 2 a</a> <a href="#" class="list-group-item" data-parent="#SubMenu2">Subitem 2 b</a> </div> <a href="javascript:;" class="list-group-item">Subitem 3</a> </div> <a href="#demo4" class="list-group-item list-group-item-success" data-toggle="collapse" data-parent="#MainMenu">Item 4</a> <div class="collapse" id="demo4"> <a href="" class="list-group-item">Subitem 1</a> <a href="" class="list-group-item">Subitem 2</a> <a href="" class="list-group-item">Subitem 3</a> </div> </div> </div> </div>

.list-group.panel > .list-group-item { border-bottom-right-radius: 4px; border-bottom-left-radius: 4px } .list-group-submenu { margin-left:20px; }