1 @mixin box-shadow($shadow...) {
5 @if (length($shadow) == 1) {
6 // We can pass `@include box-shadow(none);`
9 // Filter to avoid invalid properties for example `box-shadow: none, 1px 1px black;`
10 @for $i from 1 through length($shadow) {
11 @if nth($shadow, $i) != "none" {
12 $result: append($result, nth($shadow, $i), "comma");
16 @if (length($result) > 0) {