update-style-block-ascii-case-insensitive-ref.html

<!DOCTYPE html>
<meta charset="utf-8">
<style>
p:after { font-weight: bold; }
p:after { content: "PASS"; color: green; }
</style>
<p>text/css treated as CSS?
<p>TeXt/CsS treated as CSS?
<p>text/cſs ignored?

chromium/third_party/blink/web_tests/external/wpt/html/semantics/document-metadata/the-style-element/update-style-block-ascii-case-insensitive-ref.html