title: How to customize the notification in Chrome,Firefox,etc.. of the site is playing media
body: <p>I would like to customize the notification of a site is playing media like YouTube's.
  <a href="https://i.stack.imgur.com/hqA4t.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/hqA4t.jpg" alt="Sample notification" /></a>
  Is it possible to style the notification with custom pictures, colors etc...?</p>
  <blockquote class="spoiler">
  <p>This doesn't seem to work in Firefox though</p>
  </blockquote>