title: Creating a panel that stays on top of applications
body: <p>When using the <a href="https://open.spotify.com" rel="nofollow noreferrer">Spotify web app</a> I can open a mini-player panel (using button [1]). The mini-player [2] stays on top every window, even when switching browser tabs or applications. Note that I'm using Chromium on Chromium OS.</p>
  
  <p><a href="https://i.stack.imgur.com/kmDCx.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/kmDCx.png" alt="enter image description here"></a></p>
  
  <p>Can this be done using html/js or is this a Chrome or even Chrome OS only thing?</p>