[position-fallback-basics.html]
  [e.style['position-fallback'\] = "none" should set the property value]
    expected: FAIL

  [e.style['position-fallback'\] = "--foo" should set the property value]
    expected: FAIL

  [Property position-fallback value 'none']
    expected: FAIL

  [Property position-fallback value '--foo']
    expected: FAIL

  [Property position-fallback has initial value none]
    expected: FAIL

  [Property position-fallback does not inherit]
    expected: FAIL

  [CSS Transitions: property <position-fallback> from [--foo\] to [none\] at (0.5) should be [none\]]
    expected: FAIL

  [CSS Transitions: property <position-fallback> from [--foo\] to [none\] at (0.6) should be [none\]]
    expected: FAIL

  [CSS Transitions: property <position-fallback> from [--foo\] to [none\] at (1) should be [none\]]
    expected: FAIL

  [CSS Transitions: property <position-fallback> from [--foo\] to [none\] at (1.5) should be [none\]]
    expected: FAIL

  [CSS Transitions with transition: all: property <position-fallback> from [--foo\] to [none\] at (-0.3) should be [none\]]
    expected: FAIL

  [CSS Transitions with transition: all: property <position-fallback> from [--foo\] to [none\] at (0) should be [none\]]
    expected: FAIL

  [CSS Transitions with transition: all: property <position-fallback> from [--foo\] to [none\] at (0.3) should be [none\]]
    expected: FAIL

  [CSS Transitions with transition: all: property <position-fallback> from [--foo\] to [none\] at (0.5) should be [none\]]
    expected: FAIL

  [CSS Transitions with transition: all: property <position-fallback> from [--foo\] to [none\] at (0.6) should be [none\]]
    expected: FAIL

  [CSS Transitions with transition: all: property <position-fallback> from [--foo\] to [none\] at (1) should be [none\]]
    expected: FAIL

  [CSS Transitions with transition: all: property <position-fallback> from [--foo\] to [none\] at (1.5) should be [none\]]
    expected: FAIL

  [CSS Animations: property <position-fallback> from [--foo\] to [none\] at (-0.3) should be [--foo\]]
    expected: FAIL

  [CSS Animations: property <position-fallback> from [--foo\] to [none\] at (0) should be [--foo\]]
    expected: FAIL

  [CSS Animations: property <position-fallback> from [--foo\] to [none\] at (0.3) should be [--foo\]]
    expected: FAIL

  [CSS Animations: property <position-fallback> from [--foo\] to [none\] at (0.5) should be [none\]]
    expected: FAIL

  [CSS Animations: property <position-fallback> from [--foo\] to [none\] at (0.6) should be [none\]]
    expected: FAIL

  [CSS Animations: property <position-fallback> from [--foo\] to [none\] at (1) should be [none\]]
    expected: FAIL

  [CSS Animations: property <position-fallback> from [--foo\] to [none\] at (1.5) should be [none\]]
    expected: FAIL

  [Web Animations: property <position-fallback> from [--foo\] to [none\] at (-0.3) should be [--foo\]]
    expected: FAIL

  [Web Animations: property <position-fallback> from [--foo\] to [none\] at (0) should be [--foo\]]
    expected: FAIL

  [Web Animations: property <position-fallback> from [--foo\] to [none\] at (0.3) should be [--foo\]]
    expected: FAIL

  [Web Animations: property <position-fallback> from [--foo\] to [none\] at (0.5) should be [none\]]
    expected: FAIL

  [Web Animations: property <position-fallback> from [--foo\] to [none\] at (0.6) should be [none\]]
    expected: FAIL

  [Web Animations: property <position-fallback> from [--foo\] to [none\] at (1) should be [none\]]
    expected: FAIL

  [Web Animations: property <position-fallback> from [--foo\] to [none\] at (1.5) should be [none\]]
    expected: FAIL

  [CSS Transitions: property <position-fallback> from [--foo\] to [none\] at (-0.3) should be [none\]]
    expected: FAIL

  [CSS Transitions: property <position-fallback> from [--foo\] to [none\] at (0) should be [none\]]
    expected: FAIL

  [CSS Transitions: property <position-fallback> from [--foo\] to [none\] at (0.3) should be [none\]]
    expected: FAIL