Stop propagation for underlying elements

[q2apro]

When you use a wenk tooltip on a mobile device and the user wants to close it by clicking on it, and if there is an underlying element, the underlying element receives the click.

If the underlying element is a link, the user gets directed to the link.

Expected behavior: Tooltip should close.

How to fix this?

I hoped I could use Javascript, but as it seems, clicks on :before and :after elements cannot be caught: https://stackoverflow.com/q/7478336/1066234