html - Bootstrap dropdown menu - display second bootstrap navbar -

i have bootstrap 3 navbar out of box dropdown-menu functionality

is there way have second navbar displayed/transitioned on dropdown-toggle of button? have nicely formatted

<nav class="navbar navbar-default">   <div class="container"> 

with our sub-menu items displayed. similar how www.bbc.co.uk site works when click "more" button - second centralised navbar displayed rather dropdown-menu (and hidden when button pressed again)

bootstrap provides different built-in components can use according needs.

it has collapse component can used open , close block when click on specific element.

you can use component inside .navbar , inside .collapse body of component can use more .dropdown items if want.

<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js"></script>  <script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js"></script>  <link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet"/>  <nav class="navbar navbar-default">    <div class="container-fluid">      <!-- brand , toggle grouped better mobile display -->      <div class="navbar-header">        <button type="button" class="navbar-toggle collapsed" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1" aria-expanded="false">          <span class="sr-only">toggle navigation</span>          <span class="icon-bar"></span>          <span class="icon-bar"></span>          <span class="icon-bar"></span>        </button>        <a class="navbar-brand" href="#">brand</a>      </div>        <!-- collect nav links, forms, , other content toggling -->      <div class="collapse navbar-collapse" id="bs-example-navbar-collapse-1">        <div class="clearfix">          <ul class="nav navbar-nav">            <li class="active"><a href="#">link <span class="sr-only">(current)</span></a></li>            <li><a href="#">link</a></li>            <li class="dropdown">              <a href="#" class="dropdown-toggle" data-toggle="dropdown" role="button" aria-haspopup="true" aria-expanded="false">dropdown <span class="caret"></span></a>              <ul class="dropdown-menu">                <li><a href="#">action</a></li>                <li><a href="#">another action</a></li>                <li><a href="#">something else here</a></li>                <li role="separator" class="divider"></li>                <li><a href="#">separated link</a></li>                <li role="separator" class="divider"></li>                <li><a href="#">one more separated link</a></li>              </ul>            </li>          </ul>          <form class="navbar-form navbar-left">            <div class="form-group">              <input type="text" class="form-control" placeholder="search">            </div>            <button type="submit" class="btn btn-default">submit</button>          </form>          <ul class="nav navbar-nav navbar-right">            <li><a href="#">link</a></li>            <li class="dropdown">              <a href="#" class="dropdown-toggle" data-toggle="collapse" data-target="#collapseexample" aria-expanded="false" aria-controls="collapseexample">dropdown <span class="caret"></span></a>            </li>          </ul>        </div>        <div class="collapsible-menu">          <div class="collapse" id="collapseexample">            <div class="well">              anim pariatur cliche reprehenderit, enim eiusmod high life accusamus terry richardson ad squid. nihil anim keffiyeh helvetica, craft beer labore wes anderson cred nesciunt sapiente ea proident.            </div>          </div>        </div>      </div><!-- /.navbar-collapse -->    </div><!-- /.container-fluid -->  </nav>