What are these effects called and how are they made?

Question

css

Actually the site www.qlghost.com/page/2
I was very interested, but I can not find information on how such effects are made. Those. Click to display news.
Of course, even a dumb person understands what js is here. It is even clearer what looks like a content slider. But something seems to me here everything is much more interesting.
I don’t ask me to chew, just tell me how such a miracle is called, or if it’s not difficult for you and you know examples on codepen or somewhere else, then please share. I want to try to collect at night.
Thank you very much

Answer 1

And what is there?
On click, a mixture of hide() + slideDown(); and then show() + slideUp();
Everything that is done in JS is available to you, all the code, from A to Z, open the source and look there!
www.qlghost.com/assets/js/script.js

Answer 2

This is Asynchronous output (so-called Real-time). Teach