Reply To: Size Image

Hi,
please,see the video:https://jumpshare.com/v/0OBY2QWwmiZjCoy8RnbW

I created a NEW product ( Exemple ) with 800x 600 images (all).
When I start reviewing the product, I notice white space between the main image and the images in Thumbnails position.
But it turns out that later this problem goes away: the images are enlarged by the size of each.

?????

And more :
maybe I didn’t explain it well: the arrows (back to products) work fine. The space between the arrows is 4 squares: is that how it should be?