I recently found this simple Image Hover Effect on w3schools: Image Hover Overlay: https://www.w3schools.com/howto/howto_css_image_overlay.asp
This even seems to work on mobile (iOS) devices (touch), as far as I could test in the tryout editor.
I then saved the provided code and published it on my own hosting (https://hammermann.ch/test.html). It's still working on desktop, but not on mobile (and I haven't changed any code at all)
Any Ideas how to solve that?
Thank you and stay healthy!