Does HTML5 Canvas render off-screen by default?

Short of looking at the source code for a browser, I don't think there is any way to know. The spec does give us one hint.

I create this demo http://jsbin.com/okoful/edit#javascript,html,live using two canvas and I conclude that if we draw outside of canvas it will not render it.

I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.