<html>
<head>
<style>
h2 {
margin: .3ex;
border-bottom: solid 1px #007;
padding: .3ex;
}
</style>
</head>
<body style="font-size: smaller;">
<h2>About this sample.</h2>
Sent message will be first stored in session,
and if user proceed, session contents will be
saved to data/.ht_* as YAML.
</body></html>