JSFiddle - React, Tailwind, and code Playground

HTML

<ul>
    <li>1</li>
    <li>2</li>
    <li>3</li>
    <li>4</li>
    <li>5</li>
</ul>

CSS

li { color: blue }
li:nth-child(2n+3) { color:green }
li:nth-child(even) { color:red }