JSFiddle - React, Tailwind, and code Playground

HTML

<span id="clickme">Click me!</span>
<p class="red">red</p>
<p class="red">red</p>
<p class="red">red</p>
<p>black</p>
<p>black</p>
<p>black</p>
<p>black</p>

JavaScript

$("#clickme").on("click", function ()
{
    $(this).nextUntil(":not(.red").css("color", "red");
});