Video Player Dead Zone

I've noticed that the left hand side of the GB video player has a dead zone where when I mouse over it, the player controls do not pop up.

• OS: Ubuntu 18.04.1
• Kernel: 4.15.0-45-generic x86_64
• Browser: Vivaldi 2.2.1388.37 (Stable channel) (64-bit)
• User Agent Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/71.0.3578.98 Safari/537.36 Vivaldi/2.2.1388.37
• Video Quality: HTML5 -> Auto

@odc: I will file a bug for this!