Hi Beli,
Sorry for the delay in response over the weekend.
The code that has been added, checks if it is on a mobile device and therefore, it will not work on a desktop browser with a small size, but only on a mobile device.
I tested this on an Android Device, however, I have made some changes that should fix it on iPhone. Could I please ask you to clear your iPhone browsers cache and try it again?
Kind regards,
Dylan