full res images don't scroll horizontally

Hello, I am helping my wife create the site http://mapseverywhere.net/

We are testing the Gallery and I’ve noticed a problem on our site — when I click on the “full screen” button” on an image, I get an image that is always the set to have the width and height of the original image, but I cannot scroll right or left, only up or down, so the left side if the image is cut off when the browser is smaller than the image.

Here is an example of the problem: http://mapseverywhere.net/2016/06/21/world-geo-graphic-atlas/#!gg-7-30

Do you have any suggestions? Maybe I could change the plugin to make the “full screen” button full screen width, rather than the size of the origianl full rez image?

I want people to be able to inspect the images, so allowing a right and left scroll would be even better than the “full screen” approach above, but right all I seem to be able to do is to guess at the user’s screen size and resize my images that I load to that size.

I did not notice this behavior in your demos, so I am guessing that it is either version-specific or theme specific. Perhaps this may be a conflict between the plugin and my theme “MagnusVersion: 2.4 By Hugo Baeta”.

I am a developer, so I might be able to work on this myself, if pointed in the right direction.

Thanks