Text and image disappear when cursor rollover on a vimeo embedded video

Hi everybody,
I'm having an issue with the embedding of video.
I have embedded a vimeo video and it is set to occupy all the project area. 
In my project the video should be full screen and logo and title should always be visualized in the top left corner of the screen.
When I roll over the video all the images and texts disappear. Instead, if the cursor is out of the video area, all the elements appear again.
Someone can help me?

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