Mobile lightbox image size

Hi,

I use the very last versions of wp, oceanwp and elementor.

I’m trying to extend the pictures size when I display them in the lightbox, because there is to much padding, probably due to the arrows and the cross. I wish I could display those pictures almost in full width, but keeping the arrows and the cross.

Any idea ?

Thank you

The page I need help with: [log in to see the link]