descriptor-prefix.html

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This WPT test may be referenced by the following Test IDs:
- /css/css-counter-styles/counter-style-at-rule/descriptor-prefix.html - WPT Dashboard Interop Dashboard

<!DOCTYPE html>

<meta charset="UTF-8">

<title>CSS Test: descriptor prefix</title>

<link rel="author" title="Xidorn Quan" href="https://www.upsuper.org/">

<link rel="help" href="https://drafts.csswg.org/css-counter-styles-3/#counter-style-prefix">

<link rel="match" href="descriptor-prefix-ref.html">

<link rel="stylesheet" href="support/test-common.css">

<style type="text/css">

  @counter-style a {

    system: extends upper-roman;

    prefix: "Appendix ";

  section {

    counter-reset: p -3;

p {

    counter-increment: p;

  p::before {

    content: counter(p, a);

</style>

<ol start="-2" style="list-style-type: a">

  <li><li><li><li><li>

</ol>

<section>

  <p><p><p><p><p>

</section>