How to bring this block to the front?

Question

css

On the store page of this site - https://promokodem.ru/shops/oldi/ there is such a question box. There is a small informative text. It opens when you hover over a question mark.

The problem is that when this block opens. Then the "Show code" button is shown on top of this informative window.
1. How to remove this bug so that the "Show Code" button is in the background.
2. Can this window be expanded?)

Answer 1

Like this