JSFiddle - React, Tailwind, and code Playground

HTML

<p id="toggle">
    <span> Left </span>
    <span> Right </span>
</p>

<div id="left"> LEFT CONTENT </div>
<div id="right"> RIGHT CONTENT </div>

CSS

#right { display:none; }

JavaScript

$('#toggle > span').click(function() {
    var ix = $(this).index();
    
    $('#left').toggle( ix === 0 );
    $('#right').toggle( ix === 1 );
});