amis/scss/layout/_hbox.scss

.#{$ns}Hbox {
  display: flex;
  flex-direction: row;
  flex-wrap: nowrap;

  &-col {
    flex-basis: 0;
    flex-grow: 1;
    min-height: 1px;
    max-width: 100%;
    width: 100%;

    &--customWidth {
      flex-grow: unset;
      flex-basis: unset;
    }

    &--auto {
      flex: 0 0 auto;
      width: auto;
      max-width: 100%;
    }
  }

  &--hRight {
    justify-content: flex-end;
  }

  &--hCenter {
    justify-content: center;
  }
  &--hBetween {
    justify-content: space-between;
  }

  &--vMiddle > &-col {
    display: flex;
    flex-direction: column;
    justify-content: center;
  }

  &--vBottom > &-col {
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
  }

  &--vBetween > &-col {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
  }

  & > &-col--vTop {
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
  }

  & > &-col--vMiddle {
    display: flex;
    flex-direction: column;
    justify-content: center;
  }

  & > &-col--vBottom {
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
  }

  & > &-col--vBetween {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
  }
}

.#{$ns}Hbox--xs {
  margin-left: calc(var(--gap-xs) * -0.5);
  margin-right: calc(var(--gap-xs) * -0.5);

  > .#{$ns}Hbox-col {
    padding-left: calc(var(--gap-xs) * 0.5);
    padding-right: calc(var(--gap-xs) * 0.5);
  }
}

.#{$ns}Hbox--sm {
  margin-left: calc(var(--gap-sm) * -0.5);
  margin-right: calc(var(--gap-sm) * -0.5);

  > .#{$ns}Hbox-col {
    padding-left: calc(var(--gap-sm) * 0.5);
    padding-right: calc(var(--gap-sm) * 0.5);
  }
}

.#{$ns}Hbox--base {
  margin-left: calc(var(--gap-base) * -0.5);
  margin-right: calc(var(--gap-base) * -0.5);

  > .#{$ns}Hbox-col {
    padding-left: calc(var(--gap-base) * 0.5);
    padding-right: calc(var(--gap-base) * 0.5);
  }
}

.#{$ns}Hbox--md {
  margin-left: calc(var(--gap-md) * -0.5);
  margin-right: calc(var(--gap-md) * -0.5);

  > .#{$ns}Hbox-col {
    padding-left: calc(var(--gap-md) * 0.5);
    padding-right: calc(var(--gap-md) * 0.5);
  }
}

.#{$ns}Hbox--lg {
  margin-left: calc(var(--gap-lg) * -0.5);
  margin-right: calc(var(--gap-lg) * -0.5);

  > .#{$ns}Hbox-col {
    padding-left: calc(var(--gap-lg) * 0.5);
    padding-right: calc(var(--gap-lg) * 0.5);
  }
}