Video off center

The preview of my video looks good but when the video plays, it moves off the screen so you only see about 1/3 of it. The title stays lined up correctly. I tried setting up to code to left justify but it didn’t help. I am using this in a tab on the page so i don’t know if this is interfering or not.

https://ww.wp.xz.cn/plugins/lazy-load-for-videos/