This looks like a browser bug to me. Check if your Linux version is the same as your (Mac?) version. A workaround I found was removing rotateZ(0deg) in your first keyframe (which you don't really don't need to specify).
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.