ant-design/components/select/style/rtl.less

@import '../../style/themes/index';
@import '../../style/mixins/index';
@import '../../input/style/mixin';

@select-prefix-cls: ~'@{ant-prefix}-select';

.@{select-prefix-cls} {
  &-rtl {
    direction: rtl;
  }

  // ========================== Arrow ==========================
  &-arrow {
    .@{select-prefix-cls}-rtl & {
      right: initial;
      left: @control-padding-horizontal - 1px;
    }
  }

  // ========================== Clear ==========================
  &-clear {
    .@{select-prefix-cls}-rtl & {
      right: initial;
      left: @control-padding-horizontal - 1px;
    }
  }

  // ========================== Popup ==========================
  &-dropdown {
    &-rtl {
      direction: rtl;
    }
  }
}