By default, Navigation will only activate itself on screens smaller than 980px. Resize your screen if the menu is not active.
<h5 class="nav_handle">Menu</h5>
<nav class="navigation" data-navigation-handle=".nav_handle">
	<a href="#">One</a>
	<a href="#">Two</a>
	<a href="#">Three</a>
</nav>
$(".navigation").navigation();
<h5 class="nav_handle">Menu</h5>
<nav class="navigation" data-navigation-handle=".nav_handle">
	<a href="#">One</a>
	<a href="#">Two</a>
	<a href="#">Three</a>
</nav>
$(".navigation").navigation({
maxWidth: "10000px"
});
<h5 class="nav_handle">Menu</h5>
<nav class="navigation" data-navigation-handle=".nav_handle">
	<a href="#">One</a>
	<a href="#">Two</a>
	<a href="#">Three</a>
</nav>
$(".navigation").navigation({
theme: ""
});
<div class="nav_content">
	<button type="button" class="nav_handle">Menu</button>
</div>
<nav class="navigation" data-navigation-handle=".nav_handle" data-navigation-content=".nav_content">
	<a href="#">One</a>
	<a href="#">Two</a>
	<a href="#">Three</a>
</nav>
$(".navigation").navigation({
type: "overlay",
gravity: "left",
maxWidth: "10000px"
});
<div class="nav_content">
	<button type="button" class="nav_handle">Menu</button>
</div>
<nav class="navigation" data-navigation-handle=".nav_handle" data-navigation-content=".nav_content">
	<a href="#">One</a>
	<a href="#">Two</a>
	<a href="#">Three</a>
</nav>
$(".navigation").navigation({
type: "overlay",
gravity: "right",
maxWidth: "10000px"
});
<div class="nav_content">
	<button type="button" class="nav_handle">Menu</button>
</div>
<nav class="navigation" data-navigation-handle=".nav_handle" data-navigation-content=".nav_content">
	<a href="#">One</a>
	<a href="#">Two</a>
	<a href="#">Three</a>
</nav>
$(".navigation").navigation({
type: "reveal",
gravity: "left",
maxWidth: "10000px"
});
<div class="nav_content">
	<button type="button" class="nav_handle">Menu</button>
</div>
<nav class="navigation" data-navigation-handle=".nav_handle" data-navigation-content=".nav_content">
	<a href="#">One</a>
	<a href="#">Two</a>
	<a href="#">Three</a>
</nav>
$(".navigation").navigation({
type: "reveal",
gravity: "right",
maxWidth: "10000px"
});
<div class="nav_content">
	<button type="button" class="nav_handle">Menu</button>
</div>
<nav class="navigation" data-navigation-handle=".nav_handle" data-navigation-content=".nav_content">
	<a href="#">One</a>
	<a href="#">Two</a>
	<a href="#">Three</a>
</nav>
$(".navigation").navigation({
type: "push",
gravity: "left",
maxWidth: "10000px"
});
<div class="nav_content">
	<button type="button" class="nav_handle">Menu</button>
</div>
<nav class="navigation" data-navigation-handle=".nav_handle" data-navigation-content=".nav_content">
	<a href="#">One</a>
	<a href="#">Two</a>
	<a href="#">Three</a>
</nav>
$(".navigation").navigation({
type: "push",
gravity: "right",
maxWidth: "10000px"
});