title: Make scrollbars only visible when a Div is hovered over?
body: <p>I am trying to figure out how to have a scrollable div that only shows its scrollbars when Hovered.  </p>
  
  <p>Example is Google Image search, in the image below you can see how the left sidebar does not appear to be scroll-able until you hover the mouse over it.</p>
  
  <p>Is this possible with CSS or is Javascript required?  If possible maybe a quick example how to do such a task?</p>
  
  <p><img src="https://i.stack.imgur.com/1Dq6D.png" alt="Example"></p>