Bootstrap 3 vertical menu with toggable submenus

HTML

<link rel="stylesheet" href="//maxcdn.bootstrapcdn.com/bootstrap/3.3.1/css/bootstrap.min.css">
<script src="//maxcdn.bootstrapcdn.com/bootstrap/3.3.1/js/bootstrap.min.js"></script>
<nav>
    <ul class="nav">
	    <li><a href="#">Link 1</a></li>
		<li><a href="#" id="btn-1" data-toggle="collapse" data-target="#submenu1" aria-expanded="false">Link 2 (toggle)</a>
			<ul class="nav collapse" id="submenu1" role="menu" aria-labelledby="btn-1">
				<li><a href="#">Link 2.1</a></li>
				<li><a href="#">Link 2.2</a></li>
				<li><a href="#">Link 2.3</a></li>
			</ul>
		</li>
		<li><a href="#">Link 3</a></li>
		<li><a href="#">Link 4</a></li>
	</ul>
</nav>

CSS

/* Bootstrap minified CSS included as External Resource*/

JavaScript

/* Bootstrap minified JavaScript included as External Resource */

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Bootstrap 3 vertical menu with toggable submenus

HTML

CSS

JavaScript

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Join the 4+ million users, and keep the JSFiddle dream alive.

Ad-free

Use pre-released features

Fiddle collections

Private collections and fiddles

Console