turtle.animate { turtlePositionX: '+=100' } had been broken becuase
the CSS hooks for turtlePosition* were not handling things when
the units "px" were included in the set value. This is now fixed,
and animate works again. A test is added for this case.
turtle.animate { turtlePositionX: '+=100' } had been broken becuase the CSS hooks for turtlePosition* were not handling things when the units "px" were included in the set value. This is now fixed, and animate works again. A test is added for this case.