Read-only link not scrolling nor responding on a mobile

I tried to open a read-only link (I created it from my site) on my mobile. I wanna see how the design on my mobile.

Funny that I cannot scroll nor open the hamburger menu. I can switch to different screen display, but cannot scroll, no clicking, no responses.

I would like to share the read-only link to my boss. So he can view it on different screens.

Pls help

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