Hide Fullwidth Easy Slider on larger screens

Hi,

I’m trying to use a Fullwidth Easy Slider to get fullwidth images for mobile and tablet view. When I hide the element on large and medium sized screens, the image is not visible but there is a fullwidth line. You can see this in the image below, with the line below the picture:

Is it possible to remove this?

Or perhaps there is a better way to display fullwidth images on only small and very small screens.

Thanks,

Del Hogg