Problem to write posts with iPhone.

When I want to write a post, iPhone automatically zooms the zone where I am writing.
But unfortunately, the website has a semi-transparent bar that cover what I am writing.
It is a difficult thing to write or edit a post without the possibility of wiew what I am writing ?

Is possible to disable this semi-transparent bar when the browser is a mobile phone ?
Or when the resolution of the browser is smaller than 800pixel width
Or when the browser say's that the OS is IOs.
Or....

A workaround I have found is to pinch the screen in and out. It will cause the bar to redraw on the top of the screen,

A workaround I have found is to

use a real computer... 8)