It looks like you are attempting to rotate around the Y axis, which is a 3D transformation. Unfortunately, progid:DXImageTransform.Microsoft.BasicImage
(And progid:DXImageTransform.Microsoft.Matrix
for that matter) do not support 3D transformations.
Your code should work in IE 10 and above, but you may need to add an additional css line in your step function for "-ms-transform
".
I wish I could link to documentation regarding 3D transformations in IE but I have found very little of it myself.