spee.ch/client/scss/_horizontal-split.scss

.horizontal-split {
  max-width: $width-content-constrained;
  width: 100%;
  margin-left: auto;
  margin-right: auto;
  display       : flex;
  flex-direction : row;
  justify-content: space-between;

  &.horizontal-split--mobile-collapse {
    @media (max-width: $break-point-mobile) {
      flex-direction: column;

      .horizontal-split__column {
        width: 100%;
      }

      .horizontal-split__column--right {
        padding-left: 0;
        padding-top: $secondary-padding;
      }
    }
  }
};

.horizontal-split__column {
  width: 50%;
  flex: 1 0 auto;
  box-sizing: border-box;
}

.horizontal-split__column--left {
  padding-right: $primary-padding;

  @media (max-width: $break-point-mobile) {
    padding-right: $thin-padding;
  }
}

.horizontal-split__column--right {
  padding-left: $primary-padding;

  @media (max-width: $break-point-mobile) {
    padding-left: $thin-padding;
  }
}

@media (max-width: $break-point-tablet) {

  .horizontal-split__column {
    display       : flex;
    flex-direction : column;
    justify-content: space-between;
  };

  .column {
    width: 100%;
    padding-left: 0;
    padding-right: 0;
    padding-bottom: $secondary-padding;
  }
}