.filter-by-boundary {
  button {
    @extend .filter-options-button;
  }
}

.filter-by-boundary {
  button {
    @extend .filter-options-button;
  }

  button.cancel-drawing,
  button.draw-again {
    @extend .filter-options-button;
    margin-left: $margin-10;
  }
}

Fix spacing with filter by boundary custom filter-button
Fix spacing with filter by boundary custom filter-button
