Generated by SassMeister.com.

SassMeister-input.scss

// ----
// Sass (v3.4.12)
// Compass (v1.0.3)
// ----

%link-base {
  color: green;

  &:hover {
    color: white;
    text-decoration: none;
    background-color: red;
  }
}

a {
  @extend %link-base;
  color: red;
}

.wont-extend-hover a {
  @extend %link-base;
  background-color: white;
}
#will-extend-hover a {
  @extend %link-base;
  background-color: white;
}

SassMeister-output.css

a, .wont-extend-hover a, #will-extend-hover a {
  color: green;
}
a:hover, #will-extend-hover a:hover {
  color: white;
  text-decoration: none;
  background-color: red;
}

a {
  color: red;
}

.wont-extend-hover a {
  background-color: white;
}

#will-extend-hover a {
  background-color: white;
}