Look at the output, because this code creates stuff like: `-moz-transition: -webkit-transform`.

This needs to be done by hand, prefix after prefix.

Also: no `-ms` needed in this code. IE9 supports transforms (`ms-transform`) but does not support transitions.
IE10+ handle unprefixed versions of both properties.

And we usually don't put transitions and other bells and whistles for Opera browsers either, as they represent a small part of our audience and it's likely that those users have old machines so they will thank us for providing them with a fast experience.