Compass/compass

@import "compass/css3";

.opacity-example {
  background: red;
  width: 40px;
  height: 40px;
  float: left;
}

#opacity-10 {
  @include opacity(0.1);
}

#opacity-20 {
  @include opacity(0.2);
}

#opacity-50 {
  @include opacity(0.5);
}

#opaque {
  @include opaque;
}

#transparent {
  @include transparent;
}