.row {
  display: flex;
  flex-direction: row;
  flex-wrap: nowrap;
  justify-content: space-between;
  align-items: flex-start;
  gap: 2em;
}
.row > * {
  text-align: left;
  flex-grow: 1;
}

.pair .left, .pair .right {
  display: inline-block;
}

.pairs {
  display: flex;
  flex-direction: row;
  flex-wrap: wrap;
  align-items: flex-start;
  gap: 0em 2em;
}

h4 {
  margin-top: 0;
}