where : has : not : is

.button:where(:has(.icon)) {
  text-align: center;
  min-inline-size: 10ch;
}

.button:where(:not(:has(.icon))) {
  text-align: center;
  min-inline-size: 10ch;
}

.card :is(h2, h3) {
  &:has(.tag) {
    display: grid;
    gap: 0.25em;
    justify-items: start;
  }
}