Aviator: How to make the navigation menu static?

In the Aviator template, on the home page I'm trying to make my navigation menu fixed (or static), how can I do that?

Try adding this to the 'Page Settings' > 'Advanced' > 'Page Header Code Injection' (on the page you want this to be applied, so the homepage for you). Be sure to include the style tags

<style>
   #main-navigation { position: fixed; }
</style>