index.html
<!DOCTYPE html>
<html>
<head>
<title>Smiley Face</title>
<style>
body {
margin: 0;
overflow: hidden;
}
</style>
<script src="https://unpkg.com/react@16.7.0/umd/react.production.min.js"></script>
</head>
<body>
<script src="bundle.js"></script>
<svg width="960" height="500">
<circle
cx="480"
cy="250"
r="245"
fill="pink"
stroke="purple"
stroke-width="10"
></circle>
<circle cx="350" cy="180" r="40"></circle>
<circle cx="600" cy="180" r="40"></circle>
</svg>
</body>
</html>
