Source code
Revision control
Copy as Markdown
Other Tools
Test Info:
- This WPT test may be referenced by the following Test IDs:
- /css/selectors/invalidation/nth-last-child-in-shadow-root.html - WPT Dashboard Interop Dashboard
<!doctype html>
<title>CSS Selectors Invalidation: :nth-last-child(An+B) within shadow root</title>
<link rel="author" title="Zach Hoffman" href="mailto:zach@zrhoffman.net">
<link rel="match" href="nth-last-child-in-shadow-root-ref.html">
<div id="host">
<template shadowrootmode="open">
<div id="firstChild">Should be red</div>
<style>
:nth-last-child(odd) {
color: red;
}
:nth-last-child(even) {
color: green;
}
</style>
</template>
</div>
<script>
host.offsetTop;
let div = document.createElement("div");
div.appendChild(document.createTextNode("Should be green"));
requestAnimationFrame(() =>
requestAnimationFrame(() => {
host.shadowRoot.insertBefore(div, host.shadowRoot.firstElementChild.nextSibling);
takeScreenshot();
}));
</script>