JSFiddle - React, Tailwind, and code Playground

HTML

<div class="panel">
    <input id="first" type="text" />
    <input id="second" type="text" />
</div>

<div class="panel">
    <h2>Panel title</h2>
    <textarea id="third"></textarea>
    <input id="fourth" type="text" />
</div>

<div class="panel">
    <p>Some paragraph</p>
    <select id="fifth"></select>
    <input id="sixth" type="text" />
</div>

JavaScript

$('.panel').find(':input:first').css('background-color','yellow');