index.html

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="utf-8" />
  <link href='https://fonts.googleapis.com/css?family=Roboto:400,300,300italic,400italic,500,500italic,700,700italic' rel='stylesheet' type='text/css'>

  <title>Onsen UI React Demo</title>

  <style>
    ons-col {
      border: 1px solid #ccc;
      background: #fff;
      overflow: hidden;
      padding: 4px;
      color: #999;
    }

    .page__content {
      background-color: #f6f6f6;
    }

    .dialog {
      height: 300px !important;
    }

    h3 {
      color: #666;
      font-size: 17px;
    }
  </style>
</head>

<body>
  <div id="app" >
  </div>
  <script src="bundle.js"></script>
</body>
</html>