JSFiddle - React, Tailwind, and code Playground

by Michel Penke

HTML

<button id="btn_1">Click me</button>
<button id="btn_2">Click me</button>

<div id="box">
</div>

CSS

#box {
  height: 100px;
  width: 100px;
  background: red;
  display: none;
}


#box.show {
  display: block;
}

JavaScript

document.getElementById('btn_1').addEventListener('click',
function () {

   document.getElementById('box')
       .classList
       .toggle('show');
});
document.getElementById('btn_2').addEventListener('click',
function () {

   document.getElementById('box')
       .classList
       .toggle('show');
});