how do I have brotherman bill with the video play in the background of fjs and stay loaded adn playing through every click?

https://www.youtube.com/watch?v=qkUVToIfrKg


I want that to just fill the page in the background but be faded so it doesn't get in the way and have it so the audio isn't gonna be louder than othe rthings people have going on and obv have a mute button