Generated by SassMeister.com.

SassMeister-input.scss

// ----
// libsass (v3.2.5)
// ----

 .content-area {
   & &__content, & &__content--wide {
     width: 100px;
   }
   
   & &__content--wide {
     width: 200px;
   }
 }
 
  .content-area1 {
   & &__content {
     width: 100px;
   }
   
   & &__content--wide {
     @extend .content-area1__content;
     width: 200px;
   }
 }

SassMeister-output.css

.content-area .content-area__content, .content-area .content-area__content--wide {
  width: 100px;
}

.content-area .content-area__content--wide {
  width: 200px;
}

.content-area1 .content-area1__content, .content-area1 .content-area1__content--wide {
  width: 100px;
}

.content-area1 .content-area1__content--wide {
  width: 200px;
}