Tests animation direction with timing functions and hardware acceleration.
  The green boxes use live animations and each should line up with the red box
  immediately above it.
  normal
  normal
  normal
  normal
  normal
  normal
  normal
  normal
  normal
  normal
  normal
  normal
  normal
  normal
 
  alternate
  alternate
  alternate
  alternate
  alternate
  alternate
  alternate
  alternate
  alternate
  alternate
  alternate
  alternate
  alternate
  alternate
 
  reverse
  reverse
  reverse
  reverse
  reverse
  reverse
  reverse
  reverse
  reverse
  reverse
  reverse
  reverse
  reverse
  reverse
 
  alternate-reverse
  alternate-reverse
  alternate-reverse
  alternate-reverse
  alternate-reverse
  alternate-reverse
  alternate-reverse
  alternate-reverse
  alternate-reverse
  alternate-reverse
  alternate-reverse
  alternate-reverse
  alternate-reverse
  alternate-reverse