{source}<!-- You can place html anywhere within the source tags --> <iframe width="100%" height="315" src="https://www.youtube.com/embed/Pu3OIT7mxDQ" frameborder="0" allowfullscreen></iframe><script language="javascript" type="text/javascript">// You can place JavaScript like this</script><?php// You can place PHP like this?>{/source}

{source}
<!-- You can place html anywhere within the source tags -->

<iframe width="100%" height="315" src="https://www.youtube.com/embed/Pu3OIT7mxDQ" frameborder="0" allowfullscreen></iframe>
<script language="javascript" type="text/javascript">
// You can place JavaScript like this

</script>
<?php
// You can place PHP like this

?>
{/source}