css/css-content/content-none-root-columns.html

<!doctype html>
<!--
     Any copyright is dedicated to the Public Domain.
     http://creativecommons.org/publicdomain/zero/1.0/
-->
<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">
  <link rel="help" href="https://drafts.csswg.org/css-content/#valdef-content-none">
  <link rel="help" 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>