vant/packages/vant/src/space/index.less

.van-space {
  display: inline-flex;

  &--horizontal {
    .van-space-item {
      display: flex;
      align-items: center;
    }
  }

  &--vertical {
    flex-direction: column;
  }

  &--align-baseline {
    align-items: baseline;
  }

  &--align-start {
    align-items: flex-start;
  }

  &--align-end {
    align-items: flex-end;
  }

  &--align-center {
    align-items: center;
  }

  &--wrap {
    flex-wrap: wrap;
  }

  &--fill {
    display: flex;
  }
}