           const sheet = style.sheet;
            const cssRules = sheet.cssRules;
            const cssRule = cssRules[0];
            elm.textContent = cssRule.cssText;
          })();
        </script>
      </li>

      <li>
        <strong>sheet.cssRules.item(0).selectorText</strong>
        <code id="testCssRulesItem0"></code>
        <script type="text/partytown">
          (function () {
            const style = document.createElement('style');
            style.innerHTML = `#testCssRulesItem0 { co