JSFiddle - React, Tailwind, and code Playground

by Researcher

HTML

<!doctype html>
<html>
<head>
    <meta charset=utf-8>
    <title></title>
    <!--script src="https://ajax.googleapis.com/ajax/libs/jquery/1.7.1/jquery.js"></script-->
    <style>
    .emphasis { font-weight: bold;}
    </style>

    <script>

    // $(function() {
    //     $('li:first-child').addClass('emphasis');
    // });

    //$(document).ready(function() {
        //$('li:first-child').addClass('emphasis');
    //});
    </script>    
</head>
<body>

<ul>
    <li>hello</li>
    <li>hello 2</li>
    <li>hello 3</li>
</ul>

</body>
</html>

JavaScript

//Hello jQuery 2
$(document).ready(function() {
    $('li:first-child').addClass('emphasis');
});