[cssnumericvalue-multiply-two-types.tentative.html]
  [Multiplying two types with different non-null percent hints throws TypeError]
    expected: FAIL

  [Multiplying two types with same base types adds exponents]
    expected: FAIL

  [Multiplying two types with different base types adds exponents]
    expected: FAIL

  [Multiplying two types respects the sign of the exponents]
    expected: FAIL

  [Multiplying a type with no exponents is a no-op]
    expected: FAIL

  [Multiplying a type with percent hint applies the percent hint]
    expected: FAIL

  [Multiplying two types with same percent hint applies the percent hint]
    expected: FAIL

