<https://www.idownloadblog.com/2013/10/22/safari-push-notifications-going-live-ahead-of-os-x-mavericks-release/#primaryimage>
<http://schema.org/height>
<https://www.idownloadblog.com/2013/10/22/safari-push-notifications-going-live-ahead-of-os-x-mavericks-release/>