Yet another horizontal scroll bar problem

I want an image that zooms in as the website zoom surpasses a certain value.
Problems.
When zooming in on a browser, the image can become bigger than the thing it is in.
A horizontal scroll bar never appears.
I do not need a vertical scroll bar since the website is scrolled that way.
Also, I do not want image fir to be set to “fill”.

P.S.: Horizontal bar actually appears but not on the image but on the main thing.

Editor.
Website.