JSFiddle - React, Tailwind, and code Playground

HTML

<html>
    <head>
        <title>Stopwatch demo</title>
    </head>
    <body>
        <h1>Stopwatch Demo</h1>
        <div id="live-demo-area"></div>
        <button type="button" id="start-stop-button">Start/Stop</button>
        <button type="button" id="reset-button">Reset</button>
        <button type="button" id="record-time-button">Record time</button>
        <h2>Past times</h2>
        <div id="live-demo-pasttime-area"></div>
        <script type="text/javascript" src="button-functionality.js"></script>
    </body>
    
</html>

JavaScript

jQuery("#live-demo-area").html("erida");