JSFiddle - React, Tailwind, and code Playground

HTML

<div class="right">
    <h3>yo1</h3>
    <h3>yo2</h3>
    <h3>yo3</h3>
</div>

CSS

h3 {
    color:green;
    margin:10px;
}

.right h3:nth-child(2)
{
    color:red;
    margin:0;
}