[determine-registration.html]
  [@property registrations are cleared when rule removed]
    expected: FAIL

  [Previous invalid rule does not prevent valid rule from causing registration]
    expected: FAIL

  [CSS.registerProperty determines the registration when uncontested]
    expected: FAIL

  [@property later in stylesheet wins]
    expected: FAIL

  [Invalid @property rule (missing syntax) does not overwrite previous valid rule]
    expected: FAIL

  [@property determines the registration when uncontested]
    expected: FAIL

  [CSS.registerProperty wins over @property]
    expected: FAIL

  [Computed value becomes token sequence when @property is removed]
    expected: FAIL

  [@property later in document order wins]
    expected: FAIL

  [Invalid @property rule (missing inherits descriptor) does not overwrite previous valid rule]
    expected: FAIL

  [Invalid @property rule (missing initial-value) does not overwrite previous valid rule]
    expected: FAIL

  [Unknown descriptors are ignored and do not invalidate rule]
    expected: FAIL

  [Inherited status is reflected in computed styles when @property is removed]
    expected: FAIL

