JSFiddle - React, Tailwind, and code Playground

by Shubham Agrawal

HTML

<div id="test">
  <h2>H2</h2>
  <span>SPAN</span>
  <p>P</p>
</div>
 <button>Button</button>

CSS

h2,
  span,
  p {
    width: 80px;
    height: 40px;
    float: left;
    padding: 10px;
    margin: 10px;
    background-color: #EEEEEE;
  }

JavaScript

$("button").on('click', function() {
var elementCount = $( "#test" ).find( "*" ).css( "border", "3px solid red" ).length;
});