JSFiddle - React, Tailwind, and code Playground

HTML

<div><p>Hello World!</p></div>

CSS

div {
    border: 1px solid blue;
    background-color: lightblue;
}
p {
    color: green;
    border: limegreen;
    background-color: olive;
}
div:hover {
    -webkit-filter: brightness(.2);
    -moz-filter: brightness(.2);
    -ms-filter: brightness(.2);
    filter: brightness(.2);
}