JSFiddle - React, Tailwind, and code Playground

by tibo_

HTML

<html>
  <head>

  </head>
  <body>
    <div onclick="messageAlert();">
    
    </div>
  </body>
</html>

CSS

div {
  width: 100px;
  height: 100px;
  background-color: blue;
}

JavaScript

function messageAlert() {
	window.alert("Quelqu'un à cliquer sur le carré bleu");
}