JSFiddle - React, Tailwind, and code Playground

HTML

<div>hello</div>
<div>goodbye</div>

CSS

div {
    width: 100px;
    height: 100px;
    background-color: red;
}

div:hover {
    box-shadow: inset 0px 0px 0 5000px rgba(0,0,0,0.5);
}