counter-reset-increment-set-display-none.html

<!DOCTYPE html>
<meta charset="utf-8">
<title>CSS Lists: counter-reset, counter-set and counter-increment on display:none</title>
<link rel="author" title="Rune Lillesveen" href="mailto:[email protected]">
<link rel="help" href="https://drafts.csswg.org/css-lists/#counters-without-boxes">
<link rel="match" href="counter-7-ref.html">
<style>
  .inc { counter-increment: x }
  .reset-6 { counter-reset: x 6 }
  .reset-666 { counter-reset: x 666 }
  .set-666 { counter-set: x 666 }
  .none { display: none }
  .result::before { content: counter(x) }
</style>
<p>You should see the number 7 below.</p>
<div>
  <span class="reset-6"></span>
  <span class="none reset-666 inc"></span>
  <span class="none set-666"></span>
  <span class="inc result"></span>
</div>

chromium/third_party/blink/web_tests/external/wpt/css/css-lists/counter-reset-increment-set-display-none.html