如何让社交媒体按钮在移动模式下水平对齐，而不是垂直对齐，显示在下拉菜单中？
这些图标位于标准的 Bootstrap 导航栏中，靠右对齐。
每当有人点击移动下拉菜单时，当前会以垂直方式列出这些图标。我想让它们横向排列。
这是我的菜单 div 代码：
<div class="container">
<div class="header">
<ul class="nav nav-pills pull-right">
<li class="active"></li>
<li></li>
<li></li>
</ul>
<div class="navbar navbar-inverse navbar-fixed-top" role="navigation">
<div class="container">
<div class="navbar-header">
<button type="button" class="navbar-toggle" data-toggle="collapse" data-target=".navbar-collapse"> <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="index.html">Welcome </a> </div>
<div class="navbar-collapse collapse">
<ul class="nav navbar-nav">
<li class="active"><a href="index.html">Home</a></li>
<li><a href="http://broadmarkpartners.com">Broadmark Partners</a></li>
<li><a href="http://broadmark.io/blog">Blog</a></li>
<li class="dropdown">
<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 class="divider"></li>
<li class="dropdown-header">Nav header</li>
<li><a href="#">Separated link</a></li>
<li><a href="#">One more separated link</a></li>
</ul>
</li>
</ul>
<ul class="nav navbar-nav navbar-right">
<li>
<a href="http://facebook.com/" class="btn btn-social-icon btn-facebook">
<i class="fa fa-facebook"></i>
</a>
</li>
<li>
<a href="http://twitter.com/" class="btn btn-social-icon btn-twitter" >
<i class="fa fa-twitter"></i>
</a>
</li>
<li>
<a href="http://www.linkedin.com/in/" class="btn btn-social-icon btn-linkedin">
<i class="fa fa-linkedin"></i>
</a>
</li>
<li>
<a href="https://github.com/broadmarkio" class="btn btn-social-icon btn-github">
<i class="fa fa-github"></i>
</a>
</li>
</ul>
</div>
<!--/.nav-collapse -->
</div>
</div>
<h3 class="text-muted"> </h3>
<p> </p>
</div>