I have two sections, one has two divs and the second one has three divs.
When I hover over the ones in the first section and the first and third in the second section – I want to change the second one in the second section.
What do I need to use to make this happen? Is this even possible?
I don’t think it’s possible with CSS. With JS quite easily. Only thing you can do with CSS is related to siblings that appear later the document (so a tiny part of what you describe might be achievable, I don’t fully understand actually). A demo would be helpful.