<!DOCTYPE html>
<html lang="en-US">
<head><title>In the context of a listbox, for example, the children of a group element must be option elements.</title></head>
<body>
  <!--
  URL: https://www.w3.org/TR/wai-aria-1.2/#group
  RULE: "when a group is used in the context of a listbox, for example, authors MUST limit
  * its children to option elements."
  -->

<!-- Children elements of group that should fail -->

<div role="listbox" aria-label="foo">
  <div role="group" id="listbox-group-1" class="fail">
   