for comparing gzipping of Sass extends and mixins

test-extends.scss

@import "../bower_components/scut/dist/scut";

@for $i from 1 through 200 {
  .test-#{$i} {
    @extend %scut-hide-visually;
    @extend %scut-image-replace;
    @extend %scut-triangle;
    @extend %scut-clearfix;
    @extend %scut-fill;
    @extend %scut-list-unstyled;
    @extend %scut-list-floated;
    @extend %scut-list-inline;
    @extend %scut-list-comma;
    @extend %scut-list-bar;
    @extend %scut-absolute;
    @extend %scut-fixed;
    @extend %scut-ratio-box;
    @extend %scut-vcenter-ib;
    @extend %scut-vcenter-td;
    @extend %scut-vcenter-tt;
    @extend %scut-center-block;
    @extend %scut-center-transform;
    @extend %scut-hanging-indent;
    @extend %scut-indented-ps;
    @extend %scut-key-val;
    @extend %scut-link-bb;
    @extend %scut-reverse-italics;
    @extend %scut-side-lined;
    @extend %scut-truncate;
  }
}

test-mixins.scss

@import "../bower_components/scut/dist/scut";

@for $i from 1 through 200 {
  .test-#{$i} {
    @include scut-hide-visually;
    @include scut-image-replace;
    @include scut-triangle;
    @include scut-clearfix;
    @include scut-fill;
    @include scut-list-unstyled;
    @include scut-list-floated;
    @include scut-list-inline;
    @include scut-list-punctuated;
    @include scut-list-divided;
    @include scut-absolute;
    @include scut-fixed;
    @include scut-ratio-box;
    @include scut-vcenter-ib;
    @include scut-vcenter-td;
    @include scut-vcenter-tt;
    @include scut-center-block;
    @include scut-center-transform;
    @include scut-hanging-indent;
    @include scut-indented-ps;
    @include scut-key-val;
    @include scut-link-bb;
    @include scut-reverse-italics;
    @include scut-side-lined;
    @include scut-truncate;
  }
}