title: Possibility to change a font awesome icon with transition
body: <p>No, I have no code to demonstrate but I have been wondering: Is it possible to change a font-awesome logo with just transition? Such as: Change the class? I did a little bit of research on w3schools and <a href="https://stackoverflow.com/questions/34116779/how-can-create-transition-effect-in-font-awesome-icon">How can create transition effect in font awesome icon</a> found this link aswell, but they didn't really help and this question has been with me for a long time. 
  so, the question is: Is it possible to make a logo change (font awesome) with css transition or do I need javascript for it?
  in case the question shouldn't be posted here. please tell me where it should so I can move it.</p>
  
  <p>Cheers,</p>