how to get the first child in css code example

Example 1: css first child

:first-child {
	//styles here
}

:nth-child(1) { //the benefit of this is you can do it for 2nd, 3rd etc...
	//styles here 
}

Example 2: css first child

/*CSS First - forth child*/
:first-child {}

:nth-child(2){}
:nth-child(3){}
:nth-child(4){}