JSFiddle - React, Tailwind, and code Playground

HTML

<div id="stage"></div>

CSS

#stage {
    position: relative;
}

.cell {
    position: absolute;
    width: 100px;
    height: 100px;
    border: 1px solid black;
    background-color: white;
}

.cell:hover {
    background-color: blue;
}