Z order test 4: z-index (transposed values; both elements transformed)
This test sets the z-index of the .far to 2 element and moves it "into" the screen by translating it along the z-axis. The z-index of the .near element is set to 1 and a "null" transform (translateZ(0)) is applied. Test passes if .far (coloured red) is rendered behind .near (coloured green).
NOTE: I'm not 100% if this test should pass or fail in its current state - the spec is ambiguous