css/css-pseudo/marker-content-014.html

<!DOCTYPE html>
<html class="reftest-wait">
<meta charset="utf-8">
<title>CSS Test: ::marker pseudo elements styled with 'content' property</title>
<link rel="author" title="Oriol Brufau" href="mailto:obrufau@igalia.com">
<link rel="match" href="marker-content-014-ref.html">
<link rel="help" href="https://drafts.csswg.org/css-pseudo-4/#marker-pseudo">
<link rel="help" href="https://drafts.csswg.org/css-values/#viewport-relative-lengths">
<meta name="assert" content="Checks that viewport units in ::marker are recalculated when viewport size changes.">
<style>
iframe {
  width: 300px;
  border: none;
}
iframe.big {
  width: 600px;
}
</style>
<body>
<script src="/common/reftest-wait.js"></script>
<script>
"use strict";
const code = `
  <!DOCTYPE html>
  <style>
  ::marker {
    font-size: 3vw;
  }
  ol {
    float: left;
  }
  .inside {
    list-style-position: inside;
  }
  .decimal {
    list-style-type: decimal;
  }
  .string {
    list-style-type: "1. ";
  }
  .marker::marker {
    content: "1. ";
  }
  </style>
  <ol>
    <li class="decimal">item</li>
    <li class="string">item</li>
    <li class="marker">item</li>
  </ol>
  <ol class="inside">
    <li class="decimal">item</li>
    <li class="string">item</li>
    <li class="marker">item</li>
  </ol>
`;
const iframe = document.createElement("iframe");
iframe.src = "data:text/html," + encodeURI(code);
iframe.addEventListener("load", function() {
  requestAnimationFrame(() => {
    iframe.classList.add("big");
    takeScreenshot();
  });
}, {once: true});
document.body.appendChild(iframe);
</script>
</body>
</html>