when the Z point of the CSS3DObject is not 0, the effect is not correct in IE11. the future version can be compatible with IE11?
https://threejs.org/examples/#css3d_sandbox

IE11

Chrome
Could you share a screenshot?
@34997593
I guess, the probrem is because of that IE does not support transform-style: preserve-3d. only flat is available.
https://msdn.microsoft.com/en-us/library/hh772282(v=vs.85).aspx
@mrdoob I have added screenshots with IE11 and Chrome .
Good news! I'm working on it, and it kinda works now.

Most helpful comment
Good news! I'm working on it, and it kinda works now.