JSFiddle - React, Tailwind, and code Playground

HTML

<div class="place">
</div>

CSS

.place { width: 50px; height: 50px; background-color: #336699; }
.place:hover, .place.green { background-color: #00cc00; }

JavaScript

$(".place").click(function () {
   $(this).toggleClass("green");
});