JSFiddle - React, Tailwind, and code Playground

HTML

<div>first</div>
<div>sibling<div>child</div></div>
<div>sibling<div>child</div><div>child</div><div>child</div></div>
<div>sibling<div>child</div><div>child</div></div>

CSS

div {
    width: 80px;
    height: 80px;
    background: #abc;
    border: 2px solid black;
    margin: 10px;
    float: left;
  }
  div.after {
    border-color: red;
  }

JavaScript

$( "div:first" ).nextAll().children().addClass( "after" );