CSS3 vendor prefix mixin

vendor-prefix-example.sass

// Example variable
$realistic-drop: 1px 1px 5px #000, 1px 1px 1px #000;

// Example mixin
@mixin box-shadow ($box-shadow) {
	-webkit-box-shadow: $box-shadow;
	   -moz-box-shadow: $box-shadow;
	    -ms-box-shadow: $box-shadow;
	     -o-box-shadow: $box-shadow;
	        box-shadow: $box-shadow;
}

// Call mixin with property values
div {
	@include box-shadow(1px 1px 5px #000);
}

// Call mixin with variable
div {
	@include box-shadow($realistic-drop);
}