title: Class Library vs (Portable) vs (Universal Windows) vs (Portable iOS, Android, Windows)
body: <p>I'm having trouble understanding the difference between all these different Class Library templates in Visual Studio 2015. Can anyone explain or provide documentation? I've tried looking but have been unsuccessful.</p>
  
  <p><a href="https://i.stack.imgur.com/Lf9m4.jpg" rel="noreferrer"><img src="https://i.stack.imgur.com/Lf9m4.jpg" alt="enter image description here"></a></p>