Robert O'Callahan wrote:
A related question is whether display:none audio and video elements should produce sound.
Opps, forgot to answer this one. I strongly feel that both <audio> and <video> should make sound for display:none elements. The CSS display property should only affect the visual appearance of the node.
Additionally, it's more efficient for us, and simpler for the author, if hidden-but-played audio/video elements don't create a frame and don't affect layout.
/ Jonas
