SCSS place something in the four corners of a container [with Bourbon]

four-corners-bourbon.scss

@for $i from 1 through 4 {
  .corner:nth-child(#{$i}){
    @include position(absolute, if($i < 3, 0, auto) if($i % 2 == 0, 0, auto) if($i > 2, 0, auto) if($i % 2 != 0, 0, auto));
  }
}