Press the left and right arrow keys to change slides. Press the left arrow key after clicking the green flag to see the demo, or go to https://phosphorus.github.io/app.html?id=161917713&turbo=true&full-screen=true to see it automatically.
Here's my first advanced tutorial! :) Feel free to use the code for your own purposes, but make sure to give credit to me if you are not making any changes.
