Codebase Browser
chromium
Go to App

chromium/third_party/blink/web_tests/external/wpt/acid/acid3/empty.css 

<!DOCTYPE HTML><html><head><title>FAIL</title><style>
<!-- this file is sent as text/html, not text/css, which is why it is
     called "empty.css" despite the following lines -->

  body { background: white; color: black; }
  h1 { color: red; }

</style><body><h1>FAIL</h1></body></html>