Fixed Height 100vh for Hml5 Videos

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Hi!
I would like to have the videos of my website with a fixed Height of 100vh -74px in pages where there is only a video in the Grid. I can do this with groups of pictures inside a carousel (I am able to change the Carousel size to Fixed Height: 100vh - 74px, but I cannot fix this heigth directly to a Html5 video. I tried to put the video inside a Carousel but then the audio doesn't sound when you play the video. The Element Grid don't work neither, you cannot play the video, it' doesn't do anything when you click on the play button.
Thanks for your help!