$social-sprite: sprite-map("sprites/socials-lodpi/*.png", $spacing: 1px);
$social-sprite-2x: sprite-map("sprites/socials-hidpi/*.png", $spacing: 2px);

@mixin social-sprite-bg($name) {
	@include sprite-bg($name, $social-sprite, $social-sprite-2x);
}

.test-1 {
	@include social-sprite-bg(facebook);
}