JSFiddle - React, Tailwind, and code Playground

by phychan

HTML

<input type="button" id="valider" class="carre" onclick="messageAlert();"></div>

CSS

.carre{
 width:110px; 
height:110px;  
text-decoration:none; 
color:white;
text-align:center; 
font-weight:bold; 
background-color:#000080;
padding:5px
padding:5px;
}

JavaScript

function messageAlert() {
window.alert("Quelqu'un a cliqué sur le carré bleu !")
}