I have been trying to make the images bigger, but nothing works. I have changed the row height (with the force row height selected) to 300px and nothing changes.
Also the image title is showing over the image at the top right and it doesn’t look nice at all.
I also tried changing the margins and nothing has changed.
I have cleared the cache and reloaded, and even reset the options and tried again. It looks the same no matter what I do in the backend.
Can you share your site url?
What version of Justified Gallery are you using?