Generated by SassMeister.com.

SassMeister-input-HTML.html

<p>Lorem ipsum</p>

SassMeister-input.scss

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

//	[ [ <'font-style'> || <'font-variant'> || <'font-weight'> ]? <'font-size'> [ / <'line-height'> ]? <'font-family'> ] 
	

$__merge-map__: (); 
$__merge__: false;  
@mixin merge {
  $__merge__: true !global;  
  $__merge-map__: () !global;    
  @content;                  
  @each $key, $value in $__merge-map__{ #{$key}: $value; }
  $__merge__: false !global;
}
@mixin render($arglist...){
  $map: keywords($arglist); 
  @if $__merge__ { $__merge-map__: map-merge($__merge-map__, $map) !global; } 
  @else { @each $key, $value in $map{ #{$key}: $value; }
  } 
}

/*

  font => 
  $font-style: normal
  $font-variant: normal
  $font-weight: normal
  $font-size:   $base-font-size
  $line-height: $base-line-height
  $font-family: sans-serif
*/




  $base-font-size: 16px;

  
	@mixin font(
	  $font        : null,      // shorthand
	  $font-style  : null,      // normal | italic | oblique | inherit
	  $font-variant: null,      // normal | small-caps | inherit
	  $font-weight : null,      // normal | bold | bolder | lighter | 100 | 200 | 300 | 400 | 500 | 600 | 700 | 800 | 900 | inherit
	  $font-size   : $base-font-size, 
	  $line-height : null,      // maybe change this to $base-line-height
	  $font-family : sans-serif // generic:  serif | sans-serif | monospace | cursive | fantacy
	){
	  @if $font == null { 
	    $font: #{$font-style $font-variant $font-weight $font-size+if($line-height,'/'+$line-height, '') $font-family };
	  }
	  @include render($font: $font); 
	}
	
	
	p {
	  @include merge {
	    //@include font($font-size:12px, $line-height: 1.4, $font-weight: 300, $font-style: italic, $font-variant: small-caps);
	    @include render($font-size:12px, $line-height: 1.4, $font-weight: 300, $font-style: italic, $font-variant: small-caps);
	    @include render($font-size:42px);
	  }
	}
	
	

	
	
	
	

SassMeister-output.css

/*

  font => 
  $font-style: normal
  $font-variant: normal
  $font-weight: normal
  $font-size:   $base-font-size
  $line-height: $base-line-height
  $font-family: sans-serif
*/
p {
  font-size: 42px;
  line-height: 1.4;
  font-weight: 300;
  font-style: italic;
  font-variant: small-caps;
}

SassMeister-rendered.html

<p>Lorem ipsum</p>