title: "Classic" menus in blueprintjs
body: <p>I'm evaluating using bluprintjs with react. Is it possible to create "classic" dropdown menus which don't use the popover component?</p>
  
  <p>The popover adds an arrow to the top and expands in an odd way for drop down menus:</p>
  
  <p><a href="https://i.stack.imgur.com/j8jR1.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/j8jR1.png" alt="enter image description here"></a></p>
  
  <p>A more classic menu I would expect to slide open from the top and look more like:</p>
  
  <p><a href="https://i.stack.imgur.com/4ILUg.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/4ILUg.png" alt="enter image description here"></a></p>