:where(.divide-y, .divide-x) {
  --gap: 0;
  --flow: var(--gap);
  --divide: 1px;
}
:where(.divide-y, .divide-x) > :where(:not(:first-child)) {
  border-color: inherit;
  border-style: inherit;
}

.divide-y > :where(:not(:first-child)) {
  border-block-start-width: var(--divide);
  padding-block: var(--flow) 0;
}

.divide-x > :where(:not(:first-child)) {
  border-inline-start-width: var(--divide);
  padding-inline: var(--flow) 0;
}