<command arg="-root"/>
- <video href="http://www.youtube.com/watch?v=pH-ykepPopw"/>
+ <video href="https://www.youtube.com/watch?v=pH-ykepPopw"/>
<number id="speed" type="slider" arg="-draw-delay %"
_label="Frame rate" _low-label="Low" _high-label="High"