<iframe title="YouTube video player" class="youtube-player" type="text/html" width="480" height="390" src="http://www.youtube.com/embed/o3n5ngZnjVg" frameborder="0" allowFullScreen></iframe>
Versión para imprimir
<iframe title="YouTube video player" class="youtube-player" type="text/html" width="480" height="390" src="http://www.youtube.com/embed/o3n5ngZnjVg" frameborder="0" allowFullScreen></iframe>