Edit File: _box-shadow.scss
@mixin box-shadow($shadow...) { @if $enable-shadows { $result: (); @if (length($shadow) == 1) { // We can pass `@include box-shadow(none);` $result: $shadow; } @else { // Filter to avoid invalid properties for example `box-shadow: none, 1px 1px black;` @for $i from 1 through length($shadow) { @if nth($shadow, $i) != "none" { $result: append($result, nth($shadow, $i), "comma"); } } } @if (length($result) > 0) { box-shadow: $result; } } }
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