When I was working through this tutorial I found that the CSS for the sky doesn't work, both in my own code, and in the code offered by the tutorial. I wanted to share the solution I found with you, and suggest that you update the tutorial. 
When I was working through this tutorial I found that the CSS for the sky doesn't work, both in my own code, and in the code offered by the tutorial.
I wanted to share the solution I found with you, and suggest that you update the tutorial.