SO nav nav-pills collapsing menu

CSS from http://bootswatch.com/cyborg. Default Bootstrap colouring and nav collapses to single collumn at 767px

by panchroma

HTML

<script src="http://netdna.bootstrapcdn.com/twitter-bootstrap/2.1.0/js/bootstrap.min.js"></script>
<link rel="stylesheet" href="http://netdna.bootstrapcdn.com/twitter-bootstrap/2.1.0/css/bootstrap.min.css">
<div class="container">
    <header>
<div class="subnav">
    <ul class="nav nav-pills">
      <li class="active"><a href="#typography">Typography</a></li>
      <li class=""><a href="#navbar">Navbar</a></li>
      <li class=""><a href="#buttons">Buttons</a></li>
      <li><a href="#forms">Forms</a></li>
      <li><a href="#tables">Tables</a></li>
      <li><a href="#miscellaneous">Miscellaneous</a></li>
    </ul>
  </div> <!-- close subnav -->
    </header>
    <section id="tables"></section>
</div><!-- close container -->

CSS

.navbar a > i {
	opacity: 0.5;
}

.navbar a:hover > i {
	opacity: 1;
}


.subnav {
    	margin-bottom: 160px;

	width: 100%;
	height: 36px;
	background-color: #eeeeee; /* Old browsers */
	background-repeat: repeat-x; /* Repeat the gradient */
	background-image: -moz-linear-gradient(top, #f5f5f5 0%, #eeeeee 100%); /* FF3.6+ */
	background-image: -webkit-gradient(linear, left top, left bottom, color-stop(0%,#f5f5f5), color-stop(100%,#eeeeee)); /* Chrome,Safari4+ */
	background-image: -webkit-linear-gradient(top, #f5f5f5 0%,#eeeeee 100%); /* Chrome 10+,Safari 5.1+ */
	background-image: -ms-linear-gradient(top, #f5f5f5 0%,#eeeeee 100%); /* IE10+ */
	background-image: -o-linear-gradient(top, #f5f5f5 0%,#eeeeee 100%); /* Opera 11.10+ */
	filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#f5f5f5', endColorstr='#eeeeee',GradientType=0 ); /* IE6-9 */
	background-image: linear-gradient(top, #f5f5f5 0%,#eeeeee 100%); /* W3C */
	border: 1px solid #e5e5e5;
	-webkit-border-radius: 4px;
	-moz-border-radius: 4px;
	border-radius: 4px;
}

.subnav .nav {
	margin-bottom: 0;
}

.subnav .nav > li > a {
	margin: 0;
	padding-top:    11px;
	padding-bottom: 11px;
	border-left: 1px solid #f5f5f5;
	border-right: 1px solid #e5e5e5;
	-webkit-border-radius: 0;
	-moz-border-radius: 0;
	border-radius: 0;
}

.subnav .nav > .active > a,
.subnav .nav > .active > a:hover {
	padding-left: 13px;
	color: #777;
	background-color: #e9e9e9;
	border-right-color: #ddd;
	border-left: 0;
	-webkit-box-shadow: inset 0 3px 5px rgba(0,0,0,.05);
	-moz-box-shadow: inset 0 3px 5px rgba(0,0,0,.05);
	box-shadow: inset 0 3px 5px rgba(0,0,0,.05);
}

.subnav .nav > .active > a .caret,
.subnav .nav > .active > a:hover .caret {
	border-top-color: #777;
}

.subnav .nav > li:first-child > a,
.subnav .nav > li:first-child > a:hover {
	border-left: 0;
	padding-left: 12px;
	-webkit-border-radius: 4px 0 0 4px;
	-moz-border-radius: 4px 0 0 4px;
	border-radius: 4px 0 0 4px;
}

.subnav .nav > li:last-child > a...