[mixin-parsing.html]
  [@layer (statement) is invalid in @mixin]
    expected: FAIL

  [@layer (block) is invalid in @mixin]
    expected: FAIL

  [@layer (anonymous) is invalid in @mixin]
    expected: FAIL

  [style rule is valid in @mixin]
    expected: FAIL

  [style rule (relative) is valid in @mixin]
    expected: FAIL

  [@media is valid in @mixin]
    expected: FAIL

  [@supports is valid in @mixin]
    expected: FAIL

  [@container is valid in @mixin]
    expected: FAIL

  [@starting-style is valid in @mixin]
    expected: FAIL

  [@scope is valid in @mixin]
    expected: FAIL

  [@scope (implicit) is valid in @mixin]
    expected: FAIL