JSFiddle - React, Tailwind, and code Playground

HTML

<input type="button" id="go" value="go" />
<div id="foo">
  parent
  <div>
    child
  </div>
  <div id="bar">
    child
  </div>
  <div>
    child
  </div>
  <div>
    child
  </div>
  <div>
    child
  </div>
  <div>
    child
  </div>
</div>

CSS

#bar { position: absolute;
z-index: 50;
top: 200px;
left : 100px;}

JavaScript

$(function(){

$('#go').on('click',function(){ $('#foo').hide();})

})