Here’s my code and a live example.
Any advice is always welcome 
Here’s my code and a live example.
Any advice is always welcome 
Great job!
My comments:
vertical-rl. You won’t see a difference because we only have one line of text.width and height in .box. *.box. ** The reason for these newer logical properties is so we can write code once that works with all writing modes. No need for specific CSS for every writing mode. 
I hope that helps.
Cheers,
Michael
Thank you Michael!
I’ve updated my code, you can check it out right here. 
Now it’s perfect! Well done, @salvadorperezm ![]()
Have a nice day,
Michael