// ----
// libsass (v3.3.2)
// ----

$sizer: 1rem;
$sizer-increment: 5;

$sizers: ();

@for $i from 1 through 20 {
  $sizers: map-merge($sizers, (
    $i * $sizer-increment: $sizer * $i * $sizer-increment
  )) 
}

@each $prop, $abbrev in (width: w, height: h) {
  @each $size, $length in $sizers {
    .#{$abbrev}-#{$size} { #{$prop}: $length !important; }
  }
}