Css question

Question

What means * in CSS?
For example
* {
box-sizing: border-box;
}

Answer 1

Applies same style to whole document ,but it should be avoided I read it somewhere ,
https://stackoverflow.com/questions/8715860/what-does-mean-in-css

Answer 2

Oh, thank you, I searched in google only in russian, but I forgot to search in English 🙂