resources/assets/riot/video-yt.tag
<video-yt>
<iframe frameborder="0" allowfullscreen src={ this.source }></iframe>
<style>
video-yt {
display: block;
}
video-yt iframe {
width: 100%;
height: 100%;
}
</style>
<script>
this.source = '//www.youtube.com/embed/' + opts.vid +'?rel=0&autoplay=1';
</script>
</video-yt>