Generated by SassMeister.com.

SassMeister-input.sass

// ----
// Sass (v3.4.12)
// Compass (v1.0.3)
// ----

=font-size($sizeValue: 1.6, $lineHeight: 1.5, $important: false)
  @if $sizeValue != false
    @if type-of($sizeValue) == number
      @if unitless($sizeValue)
        font-size: ($sizeValue * 10) + px if($important, !important, null)
        font-size: $sizeValue + rem if($important, !important, null)
      @else
        font-size: $sizeValue if($important, !important, null)
  @if $lineHeight != false
    @if type-of($sizeValue) != number
      $sizeValue: 1.6
    @if type-of($lineHeight) == number
      @if unitless($lineHeight)
        line-height: ($sizeValue * 10 * $lineHeight) + px if($important, !important, null)
        line-height: ($sizeValue * $lineHeight) + rem if($important, !important, null)
      @else
        line-height: $lineHeight if($important, !important, null)
        
        


.lol
  +font-size(1.4)

.rofl 
  +font-size(1.4, 1.2)
  
.iiihhh 
  +font-size(1.4, 1.2, true)

SassMeister-output.css

.lol {
  font-size: 14px;
  font-size: 1.4rem;
  line-height: 21px;
  line-height: 2.1rem;
}

.rofl {
  font-size: 14px;
  font-size: 1.4rem;
  line-height: 16.8px;
  line-height: 1.68rem;
}

.iiihhh {
  font-size: 14px !important;
  font-size: 1.4rem !important;
  line-height: 16.8px !important;
  line-height: 1.68rem !important;
}