chromium/third_party/blink/web_tests/external/wpt/css/selectors/root-siblings.html

<!DOCTYPE html>
<meta charset="utf-8">
<title>CSS Test: Parsing check for * ~ :root error handling</title>
<link rel="author" title="Microsoft" href="http://www.microsoft.com/">
<link rel="help" href="https://drafts.csswg.org/selectors-3/#selector-syntax">
<link rel="match" href="../reference/ref-filled-green-100px-square.xht">
<meta name="assert" content="* ~ :root should not match anything">
<style>
* ~ :root div {
  background-color: red;
}
div {
  width: 100px;
  height: 100px;
  background-color: green;
}
</style>
<p>Test passes if there is a filled green square and <strong>no red</strong>.</p>
<div></div>