PASS - "webkitTransform" property for "box" element at 0.5s saw something close to: 1,0,0,1,50,0
PASS - "webkitTransform" property for "box" element at 1s saw something close to: 1,0,0,1,100,0
PASS - "webkitTransform" property for "box" element at 2.5s saw something close to: 1,0,0,1,50,0