Is it possible to overload mixins in sass? -

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let have mixin shadow such:

@mixin box-shadow($offset, $blur, $color) {    -moz-box-shadow: $offset $offset $blur $color;    -webkit-box-shadow: $offset $offset $blur $color;    box-shadow: $offset $offset $blur $color; }

is possible overload mixin like:

@mixin box-shadow($offset, $blur) {     @include box-shadow($offset, $blur, #999); }

or have use different names mixins?

you can't overload, typical practice set defaults.

 /* take color arg, or fall #999 on 2 arg call */  @mixin box-shadow($offset, $blur, $color: #999) {    -webkit-box-shadow: $offset $offset $blur $color;    -moz-box-shadow: $offset $offset $blur $color;    box-shadow: $offset $offset $blur $color;  }

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