Thanks RIkard, of course it works :-)

I am not a CSS expert, as you can imagine, and based on what I learned I thought I had to precisely target the element for which I wanted to change the style (= the image). I know this goes out of your duties here, though, therefore I will understand if you’ll skip the question :)
Could you please/kindly explain to me how did you deduce that you had to act on the main.content of the body, rather than applying the style to the image only?

I know this goes out of your duties here, though, therefore I will understand if you’ll skip the question :)

Thank you so much!
Bye,
A.-

It works perfectly, Ismael, thanks!

Can I dare to ask you to always have the overaly, also when not hovering?

Thanks again!!