[at-container-style-parsing.html]
  [style(--my-prop: foo)]
    expected: FAIL

  [style(--my-prop: foo - bar ())]
    expected: FAIL

  [style(not ((--foo: calc(10px + 2em)) and ((--foo: url(x)))))]
    expected: FAIL

  [style((--foo: bar) or (--bar: 10px))]
    expected: FAIL

  [style(--my-prop:)]
    expected: FAIL

  [style(--my-prop: )]
    expected: FAIL

  [style(--foo: bar !important)]
    expected: FAIL

  [style(--foo)]
    expected: FAIL