Banner Slideshow Sizing

Might be an idiot, but that's who questions are for, right? I am trying to adjust the sizing of my banner slideshow on mobile only. I am happy with the sizing of the banner on desktop, but the image is cropped on mobile and elongated. I'd like the photo to display at full width and for the height to be reduced. I've tried variations of code which either result in a cropped mobile photo or nothing at all. I will be adding more photos of the same size to the gallery, but I'm looking to resolve the issue presented here first. Any help would be greatly appreciated.

2 hours ago, Lesum said:

@mbrum5 This thread might help: 

 

Thank you so much! This was the solution!