@option compress: no, reverse-colors: yes;

$global: blue;

@mixin box {
	color: $global;
	$global: red;
	color: $global;
	color: $white;
}

$global: green;
$white: white;

a {
	@include box();
	color: $global;
}

b {
	@include box();
	color: $global;
}