I bought the Fullscreen theme and loaded it into my Shopify HTML
Editor using a detailed guide
IT WORKS PERFECTLY on Desktop, on my Android phone, on all laptops,
ON ADROID tablets too!
It just doesn’t work on iPhone and iPad. Can’t figure out why.
Refer to the screenshot to see what it does on iPad and iPhone, it
puts the picture in the bottom-right corner instead of fitting it
to the screen
Any idea what can be done about it?
Thank you.

PS: I discovered that it doesn’t work on a Samsung tablet as
well so it’s not just iOS
Any ideas what could be causing it?