[CSS] How to change a height of a video in html css?

HTML:

<video autoplay muted loop id="myVideo">
    <source src="videos/Raindrops.mp4" type="video/MP4">
</video>

CSS:

#myVideo {
    width: 100%;
    height: 600px;
    object-fit: cover;
    z-index: -100;
}