Sticky Navigation
Allow the navigation to react to user's scrolling.
Adding headroom to navigation [stickyNav]
nav-fixed class change the navigation to become fixed to the top of the screen while user scrolls.
headroom class change the navigation to show or hids based on the user's scrolling direction.
Template
<nav class="kb-nav navbar [stickyNav]" ariaLabel="main">
...
</nav>