<!DOCTYPE html>
<html>
<body>
<div id="root"></div>
</body>
<script src="https://unpkg.com/react@17.0.2/umd/react.development.js"> </script>
<script src="https://unpkg.com/react-dom@17.0.2/umd/react-dom.development.js"> </script>
<script src=https://unpkg.com/prop-types@15.7.2/prop-types.js> </script>
<script src="https://unpkg.com/@babel/standalone/babel.min.js"></script>
<script type="text/babel">
function Btn({text, onClick, fontSize=30 }){
return(
<button
onClick={onClick}
style={{
backgroundColor:"Violet",
color:"white",
padding:"10px 20px",
border:0,
borderRadius: 30,