Error in the new version of Google Chrome (73.0.3683.75)
When drawing multiple iframes on the page, padding-top does not work, as a result, the lower iframe overlays the upper one. In this case, the mouse pointer works with a shift, i.e. indicates an element that should be in this place, and not the one that the user sees.
It is treated by replacing padding-top with margin-top:

correctly:

It is treated by replacing padding-top with margin-top:

correctly:
