:where()

Baseline 2021 Reference ↗

:where() groups selectors like :is(), but always contributes zero specificity. It is ideal for defaults that consumers should be able to override.

:where(ul, ol)[class] {
  margin: 0;
  padding: 0;
  list-style: none;
}

.article :where(h2, h3, p) {
  max-inline-size: 65ch;
}

The selectors inside :where() still decide what matches; only their specificity is discarded.