w3schools css group selectors > code example

Example 1: css how to style id

/*put a # infront of the id*/
/*<section id="example"></section>*/
#example{
	margin: auto;
}

Example 2: css selectors

* {
color: pink;
}
h1, h2 {Select all h1 and h2}
li a {select all anchor inside a list}
h1 + p {select all p placed after an h1}
div > li {all li directly in a div}