我有一个带有一堆导航的导航栏 . 我希望只有通知下拉列表才能在xs设备上折叠 . 我还需要通知处于特定位置（搜索表单的右侧） .
这是原始导航：
<nav class="navbar navbar-inverse" role="navigation">
<div class="container-fluid">
<!-- Brand and toggle get grouped for better mobile display -->
<div class="navbar-header">
<button type="button" class="navbar-toggle collapsed" data-toggle="collapse" data-target="#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="/"><span class="logo">logo</span></a>
</div>
<!-- Collect the nav links, forms, and other content for toggling -->
<div class="collapse navbar-collapse" id="navbar-collapse-1">
<ul class="nav navbar-nav">
<li><a href="/">Home</a></li>
<li class="dropdown">
<a href="#" class="dropdown-toggle" data-toggle="dropdown" role="button" aria-haspopup="true" aria-expanded="false">Actions <span class="caret"></span></a>
<ul class="dropdown-menu">
<li><a href="#">Action 1</a></li>
<li><a href="#">Action 2</a></li>
</ul>
</li>
<li><a href="#">Posts</a></li>
<form class="navbar-form navbar-left search-form" role="search" action="/home/search" accept-charset="UTF-8" method="get"><input name="utf8" type="hidden" value="✓">
<div class="form-group">
<input type="text" name="q" id="q" class="form-control" placeholder="Search">
<button type="submit" class="btn btn-default"><i class="fa fa-search"></i></button>
</div>
</form>
</ul>
<ul class="nav navbar-nav navbar-right">
<li class="dropdown">
<a href="#" id="notification-circle" class="dropdown-toggle" data-toggle="dropdown" role="button" aria-haspopup="true" aria-expanded="false">
<i title="Notifications" class="fa fa-circle fa-lg"></i>
</a>
<ul class="dropdown-menu" id="notifications-ul">
<li><a href="#">All Notifications...</a></li>
</ul>
</li>
<li><a href="#">Help</a></li>
<li><a href="#">Logout</a></li>
</ul>
</div><!-- /.navbar-collapse -->
</div><!-- /.container-fluid -->
</nav>
目前此导航在xs设备上折叠，这是一个问题，因为当有新通知时，通知按钮会亮起一个数字，如果通知折叠，该信息将不会显示给用户 .
尝试1：我尝试将通知移动到 navbar-header ，但这会将通知呈现在搜索的左侧，这是不可接受的 .
尝试2：我还尝试创建两个通知 - 一个在 Headers 中的xs中可见，一个隐藏在xs中，但它会导致所有类型的怪异 - 例如，下拉列表项在移动视图中显示为单独的圆圈 . 以下是我尝试的一个变体：
<nav class="navbar navbar-inverse" role="navigation">
<div class="container-fluid">
<!-- Brand and toggle get grouped for better mobile display -->
<div class="navbar-header">
<button type="button" class="navbar-toggle collapsed" data-toggle="collapse" data-target="#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="/"><span class="logo">logo</span></a>
<ul class="navbar-brand visible-xs-inline">
<li class="dropdown">
<a href="#" id="notification-circle" class="dropdown-toggle" data-toggle="dropdown" role="button" aria-haspopup="true" aria-expanded="false">
<i title="Notifications" class="fa fa-circle fa-lg"></i>
</a>
<ul class="dropdown-menu" id="notifications-ul">
<li><a href="#">All Notifications...</a></li>
</ul>
</li>
</ul>
</div>
<!-- Collect the nav links, forms, and other content for toggling -->
<div class="collapse navbar-collapse" id="navbar-collapse-1">
<ul class="nav navbar-nav">
<li><a href="/">Home</a></li>
<li class="dropdown">
<a href="#" class="dropdown-toggle" data-toggle="dropdown" role="button" aria-haspopup="true" aria-expanded="false">Actions <span class="caret"></span></a>
<ul class="dropdown-menu">
<li><a href="#">Action 1</a></li>
<li><a href="#">Action 2</a></li>
</ul>
</li>
<li><a href="#">Posts</a></li>
<form class="navbar-form navbar-left search-form" role="search" action="/home/search" accept-charset="UTF-8" method="get"><input name="utf8" type="hidden" value="✓">
<div class="form-group">
<input type="text" name="q" id="q" class="form-control" placeholder="Search">
<button type="submit" class="btn btn-default"><i class="fa fa-search"></i></button>
</div>
</form>
</ul>
<ul class="nav navbar-nav navbar-right">
<li><a href="#">Help</a></li>
<li><a href="#">Logout</a></li>
</ul>
<ul class="nav navbar-nav navbar-right hidden-xs">
<li class="dropdown">
<a href="#" id="notification-circle" class="dropdown-toggle" data-toggle="dropdown" role="button" aria-haspopup="true" aria-expanded="false">
<i title="Notifications" class="fa fa-circle fa-lg"></i>
</a>
<ul class="dropdown-menu" id="notifications-ul">
<li><a href="#">All Notifications...</a></li>
</ul>
</li>
</ul>
</div><!-- /.navbar-collapse -->
</div><!-- /.container-fluid -->
</nav>
这是bootply链接：http://www.bootply.com/SZbrMZoiXq
如何让移动设备中的通知下拉列表不会崩溃？
例如，引导程序中是否有一个类跳过像'no-collapse'那样的崩溃，我可以应用于我想要跳过折叠的导航？