operators.scss

// contrived example


$box-height: 30px;
$box-width: 30px;


// optional args

@mixin box-me-bro ($width: $box-width, $height: $box-height) {
  width: $width;
  height: $height;
}

// using it

div {
  @include box-me-bro()
}

main {
  @include box-me-bro(50px, 90px)
}