<!DOCTYPE html>
<html class="foo">
<title>View transitions: ensure :only-child is supported on view-transition-group</title>
<link rel="help" href="https://drafts.csswg.org/css-view-transitions-1/">
<link rel="author" href="mailto:khushalsagar@chromium.org">

<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>

<style>
::view-transition {
  background-color: black;
}
html:only-child {
  background-color: black;
}
:root:only-child {
  background-color: bl