<?php
/* @var $content string */
?>
<!DOCTYPE html>
<html>
<head>
    <meta charset="UTF-8">
</head>
<body style="font-family: Arial, sans-serif; background:#f5f5f5; padding:20px;">
<div style="max-width:600px; margin:0 auto; background:#ffffff; padding:20px;">
    <?= $content ?>
</div>
</body>
</html>
