<!doctype html>
<html>
<head>
  <meta charset="utf-8">
  <title>$1</title>
  <link rel="stylesheet" href="chrome://resources/css/text_defaults.css">
  <style type="text/css">
  #title,
  #description {
    font-size: 13px;
  }
  #title {
    font-weight: bold;
  }
  </style>
</head>
<body dir="$3">
  <div id="title">$1</div>
  <div id="description">$2</div>
</body>
</html>