Dawn Theme - Change slider for mobile and desktop

[BraveJess]

Hello, I am looking to edit the slider so I have different images depending if you are viewing on desktop & mobile.

I have followed this tutorial: https://made4uo.com/blogs/shopify-tutorial/assign-any-section-to-show-on-mobile-or-desktop-only?page...

I can get the mobile setting to work (it only appears on mobile devices) however the desktop setting is shown on desktop and mobile view. Is there an extra bit of code I need to add to get the desktop image to only show on desktop?