title: How to create a sub-menu scrollable dropdown using semantic-ui?
body: <p>In the guide it says it is not possible to do it by using a standard method: <a href="http://semantic-ui.com/modules/dropdown.html#scrolling" rel="nofollow noreferrer">http://semantic-ui.com/modules/dropdown.html#scrolling</a></p>
  
  <p>However, has anyone manage to do it? </p>
  
  <p>In the moment you make a sub-menu drop-down scrollable, the triangle that points the drop-down button, disappears, as the overflow changes from visible to auto.</p>
  
  <p>From this: </p>
  
  <p><a href="https://i.stack.imgur.com/mxF2U.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/mxF2U.png" alt="enter image description here"></a></p>
  
  <p>Goes to this:</p>
  
  <p><a href="https://i.stack.imgur.com/jGpjI.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/jGpjI.png" alt="enter image description here"></a></p>
  
  <p>Any ideas?</p>