With one video in an iFrame, Clover's canvas doesn't fill the container.

[tpendragon]

We embed viewers via iFrames, so we rely on viewers filling the container they're in. It looks like clover doesn't have a containing div that expands to fill, and instead you can pass the height of the canvas (which may vary.) I've chatted about this a little with y'all, but thought it'd be good to record a ticket.