So thats what a child theme is for. I already read that a couple of times but didn’t think i’d need that. Thank you for this information ! And also for the answer to my question. It worked perfectly.
But i just found something else. The text color now stays white when i move over it wich is good but when i go to the submenu it does turn black again… i would search myself, but with this part i have no clue where to start :S.