JSFiddle - React, Tailwind, and code Playground

HTML

<span class="button">Click me!</span>

CSS

.button {
    display: inline-block;
    padding: 1em;
    color: white;
    background-color: gray;
}
.button.active {
    background-color: black;
}

JavaScript

$('.button').click(function() {
    $(this).toggleClass('active', 'desactive');
});