How can I adjust my slideshow size for mobile viewing?

[LivvyV]

Hello, i need help with my slideshow, on desktop it is a good size but mobile it shows too small. All my slideshows are 1200x500pixels - not sure if this is even the right size it should be? The slide height is set to adapt to first image. I have tried different codes but none seem to be working. Also my slideshow seems to be loosing picture quality if anyone can help with that too. 

[Moeed]

Hey @LivvyV 

Welcome to Shopify Community! Can you share your Store URL so I can have a look on it? Also, if you have password enabled then please share the password as well. Your cooperation would be greatly appreciated.

Best Regards,
Moeed

[LivvyV]

hello - www.stormcosmetics.co.uk