Funny and usable trombone.
L'auteur nous en dit plus sur cette démo
This demo shows capabilities of media queries to design animating trombone which plays sounds depending on the size of the browser's window. All animations are done using just CSS3 and media queries.
Besides being fun to play with it remains fully functional on small screen devices where you simply cannot resize your browser's window. In that case you can click on letters to make sound.