Hi Fernando, thanks for responding ! but that is not what I’m trying to accomplish.
Your green panel on the mobile grid is in position 3 but on desktop grid is on position 2, and I want it to be on position 3 on desktop. (I’m taking these numbers from my drawing)
But no worries, I don’t need no longer a solution for this.
I think I’ve got it. Screenshots should show settings. The key issue is to use negative top margin on block 3 in desktop mode, or it will be positioned below box 2. I this forum lets me post a link, you can see it here: 3 block challenge - Let's Test Wordpress!