JSFiddle - React, Tailwind, and code Playground
HTML
<script src="https://code.jquery.com/jquery-1.11.3.js"></script>
<div><span>Hello</span></div>
<p class="selected">Hello Again</p>
<p class="loco">And Again</p>JavaScript
$( ".selected" ).next('.loco').css( "background", "yellow" );