JSFiddle - React, Tailwind, and code Playground

HTML

<div id="holder">
    <div class="classA"></div>
    <div class="classA otherClass"></div>
    <div class="classB"></div>
    <div class="classB thirdClass"></div>
</div>

CSS

div > div {
    height: 100px;
    width: 100px;
    border: 1px solid black;
    margin: 10px;
}

JavaScript

$('#holder')
    .children('.classA, .classB, .thirdClass, .otherClass')
    .text('I am selected');