404
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>Error</title>
</head>
<body>
<pre>Cannot GET /item/Show%20HN:%20I%20saw%20this%20cool%20navigation%20reveal,%20so%20I%20made%20a%20simple%20HTML+CSS%20version</pre>
</body>
</html>
.