As I would like to be able to manipulate the z-index of an embedded Youtube playlist, I tried adding the html5 parameter, set to 1, but this seems to work for single video embedding only.
This works:
<iframe width="300" height="225" src="http://www.youtube.com/embed/VIDEO_ID?html5=1" frameborder="0">
But this doesn't:
<iframe width="300" height="225" src="http://www.youtube.com/embed/videoseries?list=PLAYLIST_ID&html5=1" frameborder="0">
Many thanks :)