JSFiddle - React, Tailwind, and code Playground

HTML

<div class="ind targetDiv">This is div 1</div>
<br />
<div class="div2 targetDiv">This is div 2</div>

CSS

.selected {
    color: red;
}

JavaScript

$(".targetDiv").on("click", function() {
    $(this).toggleClass('selected').siblings().removeClass('selected');
});