Welcome to the homepage. This is a default route and is shown if no other routes are being navigated to.
At the top of this page are three menu items. The active nav item will be bold to show what page you're on, this is controlled by the active class. Click the other nav options to navigate to those pages and watch what happens in the URL. The active class is automatically applied to the link. Open up my-app.html to see how the nav is built.