JSFiddle - React, Tailwind, and code Playground

HTML

<button>Click</button>
<div id="foo">Hello</div>

CSS

#foo {
    padding-top: 15px;
    padding-left: 10px;
}

JavaScript

var isShowing = true;

$('button').click(function () {
    if (isShowing) {
        $('#foo').hide();
        isShowing = false;
    }
    else {
        $('#foo').show();
        isShowing = true;
    }
});