Generated by SassMeister.com.

SassMeister-input.scss

// ----
// Sass (v3.4.4)
// Compass (v1.0.1)
// ----

p {
  a {
    color: red; 
    .footer & {
    color: purple;
  }
  }
  
  > a {
    color: blue;
    
    &:hover {
      opacity: 0.5;
    }
    
  }
    
}

SassMeister-output.css

p a {
  color: red;
}
.footer p a {
  color: purple;
}
p > a {
  color: blue;
}
p > a:hover {
  opacity: 0.5;
}