y --no-initial-universal-value {
    syntax: "*";
    inherits: false;
  }
  @property --syntax-only {
    syntax: "<color> | none";
  }
  @property --inherits-only {
    inherits: true;
  }
  @property --initial-value-only {
    initial-value: red;
  }
  /* U+0009 CHARACTER TABULATION */
  @property --tab\9 tab {
    syntax: "*";
    inherits: true;
  }
</style>
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