JSFiddle - React, Tailwind, and code Playground
HTML
<div id="player-overlay">
<video controls>
<source src="http://techslides.com/demos/sample-videos/small.mp4" />
</video>
</div>
CSS
#player-overlay {
position: absolute;
top: 0;
left: 0;
width: 100%;
height: 100%;
background-color: #000;
z-index: 999;
}
video {
display: block;
width: 100%;
height: 100%;
}