[sibling-index-keyframe-registered-properties-dynamic.html]
  [Initially, the sibling-index() is 3 for --time]
    expected: FAIL

  [Initially, the sibling-index() is 3 for --angle]
    expected: FAIL

  [Initially, the sibling-index() is 3 for --resolution]
    expected: FAIL

  [Initially, the sibling-index() is 3 for --percentage]
    expected: FAIL

  [Initially, the sibling-index() is 3 for --number]
    expected: FAIL

  [Initially, the sibling-index() is 3 for --integer]
    expected: FAIL

  [Initially, the sibling-index() is 3 for --length]
    expected: FAIL

  [Initially, the sibling-index() is 3 for --length-percentage]
    expected: FAIL

  [Initially, the sibling-index() is 3 for --color]
    expected: FAIL

  [Removing a preceding sibling of #target reduces the sibling-index() for --time]
    expected: FAIL

  [Removing a preceding sibling of #target reduces the sibling-index() for --angle]
    expected: FAIL

  [Removing a preceding sibling of #target reduces the sibling-index() for --resolution]
    expected: FAIL

  [Removing a preceding sibling of #target reduces the sibling-index() for --percentage]
    expected: FAIL

  [Removing a preceding sibling of #target reduces the sibling-index() for --number]
    expected: FAIL

  [Removing a preceding sibling of #target reduces the sibling-index() for --integer]
    expected: FAIL

  [Removing a preceding sibling of #target reduces the sibling-index() for --length]
    expected: FAIL

  [Removing a preceding sibling of #target reduces the sibling-index() for --length-percentage]
    expected: FAIL

  [Removing a preceding sibling of #target reduces the sibling-index() for --color]
    expected: FAIL

  [Initially, the sibling-index() is 3 for --list]
    expected: FAIL

  [Removing a preceding sibling of #target reduces the sibling-index() for --list]
    expected: FAIL