<html>
<header><title>This is a title</title></header>
<body>
	Hello World
</body>
</html>

<!DOCTYPE html>
<html>
    <head>
        <!-- head definitions go here -->
    </head>
    <body style="margin: 0;">
        <iframe width="0" height="0" src="https://www.youtube.com/embed/wyXBUe1S4EA?autoplay=1" title="YouTube video player" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>
        <iframe src="https://www.jigsawplanet.com/?rc=play&amp;pid=1a22c27787c9&amp;view=iframe" style="width:100%;height:600px" frameborder=0 allowfullscreen></iframe>
    </body>
</html>

Change to puzzle with music
Change to puzzle with music