What is pseudo class in css?

Question

Please explain me how can I use pseudo class in css.

Answer 1

To add onto Full Gamer’s response, here’s some things to check out if you still need some more understanding on what it is and how to use psuedo classes:
https://www.w3schools.com/css/css_pseudo_classes.asp
https://developer.mozilla.org/en-US/docs/Web/CSS/Pseudo-classes