Generated by SassMeister.com.

SassMeister-input.scss

// ----
// Sass (v3.4.7)
// Compass (v1.0.1)
// ----

$fullWidth: 1000px;
$leftColumn: 250px;
$rightColumn: $fullWidth - $leftColumn;

body {
  width: $fullWidth;
}

#left {
  width: $leftColumn;
}

#right {
  width: $rightColumn;
}

SassMeister-output.css

body {
  width: 1000px;
}

#left {
  width: 250px;
}

#right {
  width: 750px;
}