<svg xmlns="http://www.w3.org/2000/svg" xmlns:h="http://www.w3.org/1999/xhtml" class="reftest-wait">
  <title>CSS Selectors Invalidation: :nth-last-child(... of class) in SVG</title>
  <h:link rel="match" href="nth-child-of-class-ref.svg"/>
  <h:link rel="help" href="https://drafts.csswg.org/selectors-4/#nth-last-child-pseudo"/>
  <h:link rel="help" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1821258"/>
  <h:link rel="author" title="Zach Hoffman" href="mailto:zach@zrhoffman.net"/>
  <script href="/common/rendering-utils.js"/>
  <script href="/common/reftest-wait.js"/>
  <style>
    :nth-last-child(odd of .c) {
      fill: green;
    }
  </style>
  <g id="circles">
    <circle class="c" cx="10" cy="10" r="10"/>
    <circle class="c" cx="30" cy="10" r="10"/>
    <circle class="c" cx="50" cy="10" r="10" id="toggler"/>
    <circle cx="70" cy="10" r="10"/>
    <circle class="c" cx="90" cy="10" r="10"/>
  </g>
  <use href="#circles" y="20" fill="red"/>
  <script><![CDATA[
    const toggler = document.querySelector("#toggler");
    requestAnimationFrame(() =>
        requestAnimationFrame(() => {
            toggler.classList.toggle("c");
            takeScreenshot();
        }));
  ]]></script>
  <!--
  This reftest will only pass if the :nth-last-child(.. of <selector>)
  invalidation considers DOM elements of any type (including SVG elements), not
  only HTML elements.
  -->
</svg>