<html>
<head>
<title>{{hostname}}</title>
<style>
body {
margin: 20px;
font-family: sans-serif;
text-align: center;
background-color: #333;
color: #ddd;
}
</style>
</head>
<body>
<h2>{{hostname}}</h2>
<p>{{datetime}}</p>
<p>Active: {{is_active}}</p>
</body>
</html>