@mixin btn {
  display: initial;
  @include width(100);
  @include height(100);
  @include background-color(black);
  @include color(white);
  @include font-size(map-get($font-size, ms));
  @include font-weight(map-get($font-weight, medium));
  @include padding-x(map-get($gap, sm));
  @include padding-y(map-get($gap, xs));
  @include margin-x(auto);
  @include border-radius(map-get($size, xxs));
  @include transition(all map-get($transition-time, ms) ease-out);
  @include hover($hover-opacity: map-get($opacity, md));
}