In a recent project that I completed, keyot.com, the requirement was to move an image of a rocket as the user scrolled down the homepage.
This is how I did it using Stellar.js.
Step 1
Uploaded jquery.stellar.min.js to child theme's js directory.
Created a file named home-non-mobiles.js in the same location and initialized Stellar like so:
One thing I did notice on the live site was that Chrome’s Better Pop-Up Blocker app blocks the animation on the rocket.