Problem with product changing their position

[TekaMD]

Hi guys, I have a problem with the product containers having different sizes because of different product combinations (colors, attributes), so their position on the page is strange, leaving blank spaces between them. The thing is that a single product page can look different on different computers, it can look ok on my Windows PC, and not ok on a Mac. I suppose this is because of different zoom settings. You can see the location differences in the pictures I attach (1st one is 100% zoom, 2nd is 80% zoom).

I would greatly appreciate your help!