Margin on mobile view

Hi guys

I am reposting my question again.

Why do I have a margin on the left hand side but not on the right-hand side?

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

Changing the max-width on the section from 1920px to 100% starting on the mobile landscape breakpoint will make the white border be on both sides

Hi Austin

Yes, that solved the problem. But I don’t understand why I had the problem - should that 1920px on desktop be automatically adjusted to 100% on mobile view by Weblow? It’s obvious that on mobile the view is not 1920px.
Thank you so much for your help and generous support.
Trust you are having great plans for the weekend.

Kind regards