JSFiddle - React, Tailwind, and code Playground

HTML

<div class="scope">
	<div>
		<a href="1">1</a>
	</div>
	<div class="start">
		<a href="2">2</a>
	</div>
	<div>
		<a href="3">3</a>
	</div>
	<div>
		<a href="4">4</a>
	</div>
</div>

<a href="x">NOT THIS</a>

JavaScript

$( '.start' ).nextAll().children( 'a' ).css( 'background-color', 'red' );