:where(
    #p0:checked ~ #play:checked ~ #c1:checked,
    #p1:checked ~ #play:checked ~ #c2:checked,
    #p2:checked ~ #play:checked ~ #cO:checked
  )
  ~ #result
  > #c {
  display: block;
}

:where(ol, ul, menu:unsupported) :where(ol, ul) {
  color: green;
}

:where(ol, ul) :where(ol, ul) ol {
  list-style-type: lower-greek;
  color: chocolate;
}

:is(section.is-styling, aside.is-styling, footer.is-styling) a {
  color: red;
}

:where(section.where-styling, aside.where-styling, footer.where-styling) a {
  color: orange;
}