$red: #d20b21;
$pink: #ea4f76;
$yellow: #f7bb05;
$purple: #b81c56;
$orange: #e94f1a;

$colours: (
 red: $red,
 pink: $pink,
 yellow: $yellow,
 purple: $purple,
 orange: $orange,
);

.post{
  &:nth-of-type(1) {
 }
}