JSFiddle - React, Tailwind, and code Playground

HTML

<ul>
    <li class="title">Checklist</li>
    <li class="checkType checked">Card Type</li>
    <li class="checkNumber checked">Card Number</li>
    <li class="checkName checked">Name on Card</li>
    <li class="checkMonth checked">Expiry Month</li>
    <li class="checkYear checked">Expiry Year</li>
    <li class="checkCode checked">Security Code</li>
</ul>

CSS

.title{font-size:23px; font-weight:bold;}
.checked{ color:#f00;}

JavaScript

$("li").each(function() {
            if($(this).hasClass() == "checked") {
                alert("hah");
            }
        });

//Scrap the above its probably totally wrong