{source}
<!– You can place html anywhere within the source tags –>
<iframe width=”594″ height=”330″ src=”https://www.youtube.com/embed/h4DU4k3ar2E” frameborder=”0″ allow=”autoplay; encrypted-media” allowfullscreen></iframe>
<script language=”javascript” type=”text/javascript”>
// You can place JavaScript like this
</script>
<?php
// You can place PHP like this
?>
{/source}