Generated by SassMeister.com.

SassMeister-input.scss

// ----
// Sass (v3.4.14)
// Compass (v1.0.3)
// ----

.button-gray {
  color: gray;
  background: red;
}

#sidebar .button-gray {
  padding: 15px;
}

.page .button {
  @extend .button-gray;
}

.compile {
  color: green;
}

SassMeister-output.css

.button-gray, .page .button {
  color: gray;
  background: red; }

#sidebar .button-gray, #sidebar .page .button, .page #sidebar .button {
  padding: 15px; }

.compile {
  color: green; }