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Test Info:

<!doctype html>
<!--
Any copyright is dedicated to the Public Domain.
-->
<html><head>
<meta charset="utf-8">
<title>CSS Content: content:none on a :root columns layout</title>
<link rel="author" title="Mats Palmgren" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1699964">
<meta name="assert" content="content:none should inhibit the :root's children from having boxes. Its pseudos should not be affected though.">
<link rel="match" href="content-none-root-columns-ref.html">
<style>
:root {
content: none;
column-width: 1px;
column-gap: 100px;
}
*::after { content: 'A'; }
*::before { content: 'B '; }
</style>
</head>
FAIL
</html>