Hey, cool project! Congrats! A few more comments that I believe could help improve it:

1.If you click on a box with a step on the left side of a tutorial, it should take you to that step. At least that is how I tried to use it initially. Right now, you can only control going forward/backward through scrolling the page.

2. In the landing page the "View Examples" and "View a Tutorial" buttons look off in Firefox (the text overflows).