JSFiddle - React, Tailwind, and code Playground

by Ryan Mitchell

HTML

<ul id="firstUL">
    <li>a</li>
    <li>b</li>
    <li>c</li>
</ul>
<ul id="secondUL">
    <li>a</li>
    <li>b</li>
    <li>c</li>
</ul>

CSS

.modified {
    color: red;
}

JavaScript

$("#firstUL li").each(function(index) {
        $($("#secondUL li").eq(index)).addClass("modified"); //corresponding element
    });