css-pseudo-classes

Question 1

What is a pseudo-class?

Answer 1

A pseudo-class is a selector that selects elements that are in a specific state, e.g. they are the first element of their type, or they are being hovered over by the mouse pointer.

Question 2

What are CSS pseudo-classes useful for?

Answer 2

Pseudo-classes can be used to style an element based on its state.