Generated by SassMeister.com.

SassMeister-input.scss

// ----
// Sass (v3.4.9)
// Compass (v1.0.1)
// ----

@function strip-unit($num) {
  @return $num / ($num * 0 + 1);
}

@mixin rem($property, $values...) {
  $max: length($values);
  $pxValues: '';
  $remValues: '';

  @for $i from 1 through $max {
    $value: strip-unit(nth($values, $i));
    $pxValues: #{$pxValues + $value}px;

    @if $i < $max {
      $pxValues: #{$pxValues + " "};
    }
  } 

  @for $i from 1 through $max {
    $value: strip-unit(nth($values, $i));
    $remValues: #{$remValues + $value / 10}rem;

    @if $i < $max {
      $remValues: #{$remValues + " "};
    }
  } 
  
  #{$property}: $pxValues; 
  #{$property}: $remValues; 
}

html{
  font-size: 62.5%;
}

body{
  font-size: 1.6rem;
}

div{
  @include rem(margin, 16px, 22px, 30px, 40px);
}

SassMeister-output.css

html {
  font-size: 62.5%;
}

body {
  font-size: 1.6rem;
}

div {
  margin: 16px 22px 30px 40px;
  margin: 1.6rem 2.2rem 3rem 4rem;
}