| 1 | @mixin box-shadow($shadow...) {
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| 2 | @if $enable-shadows {
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| 3 | $result: ();
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| 4 |
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| 5 | @each $value in $shadow {
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| 6 | @if $value != null {
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| 7 | $result: append($result, $value, "comma");
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| 8 | }
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| 9 | @if $value == none and length($shadow) > 1 {
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| 10 | @warn "The keyword 'none' must be used as a single argument.";
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| 11 | }
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| 12 | }
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| 13 |
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| 14 | @if (length($result) > 0) {
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| 15 | box-shadow: $result;
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| 16 | }
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| 17 | }
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| 18 | }
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