It looks like v25 broke fullscreen video playback on iPhones. It seems to work perfectly on safari on an iPad - but not on my iphone mini. On the phone i get the header/footer in portrait mode with the video not centered, and just a thin black bar in landscape. I saw some stuff about full screen playback in the 25.0.3 release notes but upgrading to that doesnt seem to change the behavior at all.
Could it be somthing specific to the mini? i dont have a full size iphone to test on. any advice or custom CSS i could put in would be appreciated.