Thank you for the help oliver!
Thx for the solution, I was stuck here as well. But I get it now, with your map comment. Makes total sense now.
I was stuck as you for so long.
You helped me so much.
You made grid-template-area so simple.
It took time for me to get it. Now, I understood it very clearly.
Like how you explained.
I liked the MDN web doc thread.