// Lightning Design System 2.29.1
.slds-progress_vertical {

  .slds-progress__item {

    &:before,
    &:after {
      left: calc((#{$square-tappable-xx-small} / 2) - 1px); // "-1px" accounts for half of line width to get true center
    }
  }

  .slds-progress__item_content {
    font-size: $font-size-4;
  }

  .slds-progress__marker {
    width: $square-tappable-xx-small;

    .slds-icon {
      @include square($square-tappable-xx-small);
    }
  }
}