Website not showing as required on mobile

Hi guys,

I have created this site (read-only link as below) and it shows fine on few mobiles & laptops but it doesn’t work properly on a few mobiles (issue on iphones & realme). Have attached the video for your reference (in this case it works fine in landscape mode but doesn’t in portrait. the mobile used is an iphone XR).

Can you guys please guide me as to where I’m pooping it up…?


Here is my site Read-Only: LINK
(how to share your site Read-Only link)