Вот старница
<!DOCTYPE html>
<? require_once($_SERVER['DOCUMENT_ROOT'].'/bitrix/modules/main/include/prolog_before.php');?>
<?
require($_SERVER["DOCUMENT_ROOT"]."/bitrix/header.php");
?>
<blockquote>
<html lang="en" dir="ltr">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, user-scalable=no, initial-scale=1.0">
<link rel="stylesheet" href="css/style.css">
<link rel="stylesheet" href="
<script type="text/javascript" src="js/jquery-3.4.1.min.js"></script>
<script type="text/javascript" src="js/script.js"></script>
</head>
<body>
</body>
</html>
</p><?require($_SERVER["DOCUMENT_ROOT"]."/bitrix/footer.php");?>