$spacer: 1rem !default;$spacers: () !default;$spacers: map-merge( ( 0: 0, 1: $spacer * .25, 2: $spacer * .5, 3: $spacer, 4: $spacer * 1.5, 5: $spacer * 3, ), $spacers);
.test-mt-5 { margin-top: map-get($spacers, 5);}
@each $key, $value in $spacers { .test-mt-#{$key} { margin-top: $value; }}
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