title: Approach to Create Floating Box UI in QT
body: <p><a href="https://i.stack.imgur.com/0mlmX.png" rel="noreferrer"><img src="https://i.stack.imgur.com/0mlmX.png" alt="enter image description here"></a></p>
  
  <p>The "supports" bubble acts similar to a tool tip, when button is clicked it appears next to a button.</p>
  
  <p>How is this bubble created? it allows widgets to be placed inside itself.
  Is this a widget by itself or some sort of float layout? 
  I am new to QT and couldn't figure out how to approach this, which widget to use to achieve this?</p>