/*--------------------------------------------------------------
# Inner Shadow
# example: @include inner-shadow(1px, 2px, 2px, #000);
--------------------------------------------------------------*/

@mixin inner-shadow($hoff: false, $voff: false, $blur: false, $color: false) {
	-webkit-box-shadow: inset $hoff $voff $blur $color;
	   -moz-box-shadow: inset $hoff $voff $blur $color;
	        box-shadow: inset $hoff $voff $blur $color;
}