CSS for full screen mode

Hello,

I had written a few days ago about “auto enable lightbox” was the subject. Well i found a workaround. I set the full screen button to be the entire width and height of the image i want to be fullscreen. I then removed the image which keeps the link and discards the full screen logo. However, i need to know where the css for full screen mode is because id like to make the main image smaller an maybe add some bottom padding to the thumbnails at the bottom, love this plugin btw, thanks!

https://www.ads-software.com/plugins/unite-gallery-lite/