.split {
  display: flex;
  margin-bottom: 8px;
}
.split-column {
  flex-grow: 1;
  width: calc(50% - 8px);
  margin-right: 16px;
}
.split-column:last-child {
  margin-right: 0;
}

.split-column > section:last-child {
  margin-bottom: 0;
}