invalid-pseudo-classes.html | Explore in Territory

<head>
<style>
div:not(:wakkawakka(n)), div { color: red }
body:wakkawakka > div, div { color: red }
</style>
</head>
<body>
<div>This text should not be red.</div>
</body>

chromium/third_party/blink/web_tests/fast/css/invalid-pseudo-classes.html