Hello!
I am not sure if anyone, other than me, found this a bit confusing with moving the properties and values to the .background-buildings.
Then, instructed to add the .foreground-buildings, there, to effectively apply the styling.
Though, it is clear, I stumbled a bit on it. I created a new selector with both included .background-buildings and .foreground-buildings and entered the properties into it. This allowed me to pass the step. However, when I see the result in the next step, I understand what I was supposed to do for this one.
Perhaps, having us add the .foreground-buildings to the selector prior to moving the properties, may be a bit more clear.
But, this is just a thought. As I said, it is clear when read properly.
I appreciate you all and find learning computer programming, at almost 70 years old, a charm I never would have thought possible in my lifetime.
Thank you for all, each and every one of you do to make this possible for me and others.
May only blessings touch your doorsteps. 