How to implement a smooth photo change in the easiest way?

Question

Photo

Hello, there are photos of the same size and there is free space on the site where these photos should simply smoothly replace each other after a certain period of time! No control buttons are needed, you just need to change them and in general the simplest way, otherwise it’s somehow stupid for such a simple thing to connect jQuery, and even everywhere, as a rule, all sorts of functions are stuffed, but I don’t need all this! What do you advise? Thank you for your attention!

Answer 1

If you do not want to load the library, then write in pure JS, here is an example