Generated by SassMeister.com.

SassMeister-input.scss

// ----
// Sass (v3.3.0.rc.1)
// Compass (v0.13.alpha.10)
// ----

$use-silent-classes-only: false!default;

@mixin class($class-name) {
  @if ($use-silent-classes-only == true) {
    %#{$class-name} {
      @content
    }
  } @else {
    %#{$class-name},
    .#{$class-name} {
      @content
    }
  }
}

@include class(o-grid-something) {
  font-weight: bold;
}


// PRODUCT CSS
.even-faster-ft {
  @extend %o-grid-something;
}

SassMeister-output.css

.even-faster-ft,
.o-grid-something {
  font-weight: bold;
}