.poem-leave-room-for-air {
  --air-tab-size: 1in;
  max-inline-size: 78ch;
}

.poem-leave-room-for-air .tab {
  display: inline-block;
  width: 0;
}

.poem-leave-room-for-air .tab-1 {
  width: var(--air-tab-size);
}

.poem-leave-room-for-air .tab-1-5 {
  width: calc(var(--air-tab-size) * 1.5);
}

.poem-leave-room-for-air .tab-2 {
  width: calc(var(--air-tab-size) * 2);
}

.poem-leave-room-for-air .poem-body p {
  text-indent: 0;
}