CSS.CSSStyleId

{
  "id": "CSSStyleId",
  "type": "object",
  "properties": [
    {
      "name": "styleSheetId",
      "$ref": "StyleSheetId",
      "description": "Enclosing stylesheet identifier."
    },
    {
      "name": "ordinal",
      "type": "integer",
      "description": "The style ordinal within the stylesheet."
    }
  ],
  "description": "This object identifies a CSS style in a unique way."
}