heading and navigation menu not showing properly in mac or apple device

[Mabinibooks]

Hello, good morning! 

Does anyone know why this is showing on Mac/Apple Device, but not on windows?



Previously, I have asked some support here, and they provided some codes, which worked on Windows, but not on Mac/Apple Device.

This is the store - https://dronehub-ph.myshopify.com/

And the password is - iatsau

Thank you!

[Mabinibooks]

It is already showing properly on Windows, but on mac, the navigation list goes vertical. Here is the picture