CSS sélectionne tous les éléments sauf le dernier CSS
To give a border to all 'div's except the last one:
div:not(:nth-last-of-type(1)) {
border-bottom:2px solid #f1f1f1;
}
syntax:
<html tag name>:not(:nth-last-of-type(n)) {-----}
Wide-eyed Weevil