.declaration-order {
  color: $brown;
  font-size: 15px;

  @include breakpoint($fullscreen);
  @include box-shadow(10px);

  @extend %placeholder;

  .rule {
    color: $charcoal;

    @extend %placeholder;
    @extend %placeholder-2;

    .nested-one-more {
      @include box-shadow(10px);

      color: $brown;
      font-size: 15px;

      @include breakpoint($fullscreen);

      @extend %placeholder;
    }

    transition: transform .5s ease;
  }

  @extend %something;
}