JSFiddle - React, Tailwind, and code Playground

HTML

<div class="parentNode a1">Application 1
    <div class="childNode">Information</div>
</div>
<div class="parentNode a2">Application 2
    <div class="childNode">Information</div>
</div>

CSS

.a1{background-color: red;}
.a2{background-color: green;}

JavaScript

$(".childNode").hide();


$(".parentNode").click(function(){
   $(".childNode").hide(100);
   $(this).children().show(100);
});