Scolling problem on a physical mobile device

Hello guys,

I am having a problem with scrolling on mobile chrome browser. It works fine everywhere else except on my mobile phone.

Below is the recording of the demo:

And here is the link to the page, you can try it out on your mobile phone:

Here is the shared link:

Please help me out. Thank you.

It’s hard to tell whiteout a share link. On desktop the scrolling doesn’t work as expected. Have to scroll a lot before the page content moves down. Page loads - I scroll - nothing happens - scroll again and then the page moves down.
The text background (grey) is gone on mobile. That makes it ferry hard to read the content.

I updated the share link. It doesn’t look the same because I only use js and css (I don’t modify them). HTMLs were divided into many components on Angular.