ul.scheduled, ul.delivered {
    margin-block-start: 0.1em;
}

li.scheduled, li.delivered {
    line-height: 2.4em;
}

li.scheduled:not(:last-child):after, li.delivered:not(:last-child):after{
    content:"";
    border-bottom: 1px solid var(--color-primary-darker);
    top: -15px; /* your top padding */
    left: 0;
    display: block;
  }

li.scheduled a.button {
    padding: 0.2em;
    margin-left: 4em;
    margin-bottom: 0.2em;
}

li.scheduled a.button .icon--item-action {
    display: block;
    width: 1.1em;
    height: 1.1em;
}