index.html

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">

    <link rel="stylesheet"
          href="https://cdnjs.cloudflare.com/ajax/libs/materialize/1.0.0-alpha.4/css/materialize.min.css">
    <link rel="stylesheet" href="https://fonts.googleapis.com/icon?family=Material+Icons">
    <link href="//maxcdn.bootstrapcdn.com/font-awesome/4.1.0/css/font-awesome.min.css" rel="stylesheet">

    <title>
        Increment
    </title>
</head>
<body>
<div id="root"></div>

<script src="https://code.jquery.com/jquery-3.3.1.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/materialize/1.0.0-alpha.4/js/materialize.min.js"></script>
<script src="build/bundle.js"></script>
</body>
</html>