JSFiddle - React, Tailwind, and code Playground

by epinapala

HTML

<button class="panel-header  small-fonts" onclick="handleMenuButtonClick(this)"><i class="icon-chevron-down"></i>API Reference</button>

JavaScript

var handleMenuButtonClick = function(el){
  alert(el.innerHTML);
  alert(el.childNodes[0].className);
}