css first four elements code example
Example 1: nth of type for every 4th after the 1st
:nth-of-type(4n+1)
Example 2: select first 5 child css
li:nth-child(-n+5) {
color: green;
}
:nth-of-type(4n+1)
li:nth-child(-n+5) {
color: green;
}