title: How do I rotate a subview x degrees?
body: <p>So I want to rotate a subview x degrees (or at least 90 degrees). I want the subwiew to rotate around the subview's bottom right corner. Is it possible to do this animated like in the picture below? </p>
  
  <p><img src="https://i.stack.imgur.com/G7uAC.jpg" alt="alt text"></p>
  
  <p>Thanks!</p>