[at-container-parsing.html]
  [@container rule should be valid: @container (width: 100px), (height: 100px) {} {}]
    expected: FAIL

  [@container rule should be valid: @container (width),(height)  , (inline-size > 20px) {} {}]
    expected: FAIL

  [@container rule should be valid: @container (width), name (height) {} {}]
    expected: FAIL

  [@container rule should be valid: @container --foo {} {}]
    expected: FAIL

  [@container rule should be valid: @container container {} {}]
    expected: FAIL

  [@container rule should be valid: @container container, container2 {} {}]
    expected: FAIL