<!DOCTYPE html>
<html class="reftest-wait">
<head>
<meta charset="utf-8">
<title>visibility</title>
<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
<link rel="help" href="https://w3c.github.io/mathml-core/#css-styling">
<link rel="help" href="https://w3c.github.io/mathml-core/#operator-fence-separator-or-accent-mo">
<link rel="match" href="visibility-005-ref.html"/>
<meta name="assert" content="Verify that visibility=hidden is used for normal, stretchy and large operators.">
<style>
  math 