Responsive widget

Hi there,

I use the ‘ last then photo’s’ widget (within the plugin Page Builder by SiteOrigin) and I wonder if I can adjust the look of it for mobile devices.

On desktop the three latest photo’s are displayed next to each other and on mobile under each other, thats’s both great. But on mobile there’s a lot of space between the thumbnails and the images should be bigger. How to adjust this?

Thanks in advance,
Angela

https://www.ads-software.com/plugins/wp-photo-album-plus/