JSFiddle - React, Tailwind, and code Playground

HTML

<div class="blob">
     <h1 class="click">Click Me<h1>
</div>

CSS

.blob {
    background-color: #222776;
    border-color: #dddddd;
    border-radius: 25px;
    font-family:'arial';
}
.click {
    cursor: pointer;
}

JavaScript

$('.click').click(function () {
    $.("blob").css('background-color', '#8ce196');
});