Generated by SassMeister.com.

SassMeister-input.scss

// ----
// Sass (v3.3.0.rc.5)
// Compass (v1.0.0.alpha.18)
// ----

%clearfix { // Placeholder selector / “Silent class”
  &:after {
    display: table;
    clear: both;
    content: ' ';
  }
}

.article {
  @extend %clearfix;
}

.panel {
  @extend %clearfix;
}

SassMeister-output.css

.article:after, .panel:after {
  display: table;
  clear: both;
  content: ' ';
}