Generated by SassMeister.com.

SassMeister-input.scss

// ----
// Sass (v3.3.0.rc.2)
// Compass (v1.0.0.alpha.17)
// ----

@mixin box($color,$width:30px, $height:30px){
  width:$width;
  height:$height;
  background-color:$color;
}

.primary-box{
  @include box(red,20px,10px);
}

.secondary-box{
  @include box(red);
}

SassMeister-output.css

.primary-box {
  width: 20px;
  height: 10px;
  background-color: red;
}

.secondary-box {
  width: 30px;
  height: 30px;
  background-color: red;
}