My product photographs have been put in at the same size 1200x900px – the problem is that the middle thumbnail is taller than the other two on smaller window sizes and on mobile the right hand thumbnail is taller than the one on the left? I can’t figure out what’s going on and how to resolve it. Does anybody know a solution. The thumbnail size width is set at 320px in customiser is set at Site width is 1366px. When I make the site width to a thinner setting eg 1170px the thumbnail in the middle is taller than the other two?