map-tool/public/assets/esri/themes/base/widgets/_UnitSelect.scss

@mixin unitSelect() {
  .esri-unit-select {
    width: 100%;

    &__label {
      --calcite-label-margin-bottom: 0;

      width: 100%;
    }
  }
}

@if $include_UnitSelect == true {
  @include unitSelect();
}