[opacity-valid.html]
  [e.style['opacity'\] = "calc(-50% - 50%)" should set the property value]
    expected: FAIL

  [e.style['opacity'\] = "calc(25% * 2)" should set the property value]
    expected: FAIL

  [e.style['opacity'\] = "calc(100% + 100%)" should set the property value]
    expected: FAIL

  [e.style['opacity'\] = "clamp(50%, 0%, 70%)" should set the property value]
    expected: FAIL

  [e.style['opacity'\] = "clamp(50%, 80%, 70%)" should set the property value]
    expected: FAIL

  [e.style['opacity'\] = "clamp(50%, 60%, 70%)" should set the property value]
    expected: FAIL

  [e.style['opacity'\] = "min(50%, 0%)" should set the property value]
    expected: FAIL

  [e.style['opacity'\] = "min(0%, 50%)" should set the property value]
    expected: FAIL

  [e.style['opacity'\] = "max(50%, 0%)" should set the property value]
    expected: FAIL

  [e.style['opacity'\] = "max(0%, 50%)" should set the property value]
    expected: FAIL

  [e.style['opacity'\] = "min(-40%, 50%)" should set the property value]
    expected: FAIL