select teh tehh third eleement css code example
Example 1: nth-child() css
/* Selects the second <li> element in a list */
li:nth-child(2) {
color: lime;
}
/* Selects every fourth element
among any group of siblings */
:nth-child(4n) {
color: lime;
}
Example 2: child css
p:nth-child(2)
{
background: red;
}