[z-index-interpolation.html]
  [CSS Transitions: property <z-index> from [initial\] to [5\] at (-0.3) should be [initial\]]
    expected: FAIL

  [CSS Transitions: property <z-index> from [initial\] to [5\] at (0) should be [initial\]]
    expected: FAIL

  [CSS Transitions: property <z-index> from [initial\] to [5\] at (0.3) should be [initial\]]
    expected: FAIL

  [CSS Transitions: property <z-index> from [unset\] to [5\] at (-0.3) should be [unset\]]
    expected: FAIL

  [CSS Transitions: property <z-index> from [unset\] to [5\] at (0) should be [unset\]]
    expected: FAIL

  [CSS Transitions: property <z-index> from [unset\] to [5\] at (0.3) should be [unset\]]
    expected: FAIL

  [CSS Transitions: property <z-index> from [auto\] to [10\] at (-0.3) should be [auto\]]
    expected: FAIL

  [CSS Transitions: property <z-index> from [auto\] to [10\] at (0) should be [auto\]]
    expected: FAIL

  [CSS Transitions: property <z-index> from [auto\] to [10\] at (0.3) should be [auto\]]
    expected: FAIL