JSFiddle - React, Tailwind, and code Playground

by Michaël van de Weerd

HTML

<div id="hover-box"></div>
<div id="hidden-box"></div>

CSS

div {
    height: 50px;
    width: 50px;
}

div#hover-box {
    background-color: blue;
}

div#hover-box:hover ~ div#hidden-box {
    display: block;
}

div#hidden-box {
    background-color: red;
    display: none;
}