JSFiddle - React, Tailwind, and code Playground

HTML

<div>
<iframe width="560" height="315" src="https://www.youtube.com/embed/_EYWW1NGJMI?rel=0&autoplay=1" frameborder="0" allowfullscreen></iframe>
</div>

CSS

div {
    -webkit-filter:saturate(0.0);
    -webkit-transition: -webkit-filter 10s; /* Safari */
    transition: -webkit-filter 10s;
}
div:hover {
    -webkit-filter:saturate(1.0);
}