I’m using Avada, and set up a test site with my issue so you can see what is going on: http://wptesting.info
The problem is that a video placed in a full width container doesn’t shrink down on mobile tests. I stuck two different sized videos in that container so you could see that either one is too wide for mobile.
Here’s a shot of how it looks live on a mobile tester: http://mobiletest.me/iphone_5_emulator/?u=http://wptesting.info/
Any ideas? I’m not sure if it is fixable, but the concept is to have text + video just like you see it, on some type of a picture background. This is only an example, but I’m kind of surprised that the video doesn’t automatically get sized appropriately.