Generated by SassMeister.com.

SassMeister-input.scss

// ----
// Sass (v3.3.14)
// Compass (v1.0.1)
// ----

.a {
  color: red;
  
  &:disabled {
    color: blue;
    
    &,
    &:hover,
    &:active {
      background-color: red;
    }
  }
}

SassMeister-output.css

.a {
  color: red;
}
.a:disabled {
  color: blue;
}
.a:disabled, .a:disabled:hover, .a:disabled:active {
  background-color: red;
}