html - why doesn't ::after work when trying to change css background?

Question

This question already has answers here: question from:https://stackoverflow.com/questions/65912508/why-doesnt-after-work-when-trying-to-change-css-background

Answer 1

You can use linear-gradient like:

background-image: linear-gradient( to bottom, rgba(255, 255, 255, 0.8), rgba(255, 255, 255, 0.8)), url("fondo.jpg");

Here you change the 0.8 to the opacity of the background you want.