[container-ident-function.html]
  [Property container-name value 'ident("--myident" calc(42 * sign(1em - 1px)))']
    expected: FAIL

  [Property container-name value '--c ident("--myident" calc(42 * sign(1em - 1px)))']
    expected: FAIL

  [Property container value 'ident("--myident" calc(42 * sign(1em - 1px)))']
    expected: FAIL

  [Property container value '--c ident("--myident" calc(42 * sign(1em - 1px))) / size']
    expected: FAIL