<!doctype HTML>
<html>
<meta charset="utf8">
<title>CSS Content Visibility: fieldset hiding content</title>
<link rel="author" title="Martin Robinson" href="mailto:mrobinson@igalia.com">
<link rel="help" href="https://drafts.csswg.org/css-contain/#content-visibility">

<style>
fieldset {
    background: green;
}
</style>

<fieldset></fieldset>
