Generated by SassMeister.com.

SassMeister-input.scss

// ----
// libsass (v3.3.2)
// ----

%title-alpha {
  font-size: 3rem;
  color: blue;
  %title-rank {
    color: yellow;
  }
}
%title-rank {
  float: left;
  margin-right: 1rem;
}

.title {
  &-alpha {
    @extend %title-alpha; 
  }
  &-rank {
    @extend %title-rank; 
  }
}

SassMeister-output.css

.title-alpha {
  font-size: 3rem;
  color: blue;
}

.title-alpha .title-rank {
  color: yellow;
}

.title-rank {
  float: left;
  margin-right: 1rem;
}