Why does Safari behave so strangely to itself?

Question

css

Weird behavior has been noticed in Safari 9.0.2, possibly older versions as well. When we use background-image in our html code after about 10 seconds. if we redraw the same element with the same image, then flickering will be visually noticed, other browsers FF, Chrome behave normally.
Playback steps:
1. go to the demo
2. start clicking on the element
3. observe how after the first image loading, when clicking, everything is displayed as if the element is not redrawn.
4. after about 10 sec. flickering of the picture begins to occur when redrawing
Maybe someone has thoughts on this topic, googling did not help in this matter.

Answer 1

I am fine :)