[variable-animation-over-transition.html]
  bug: https://github.com/servo/servo/issues/21564
  expected: TIMEOUT
  [Verify CSS variable value before animation]
    expected: FAIL

  [Verify substituted color value before animation]
    expected: FAIL

  [Verify CSS variable value after animation]
    expected: NOTRUN

  [Verify substituted color value after animation]
    expected: NOTRUN