{
  "of": {
    "utrecht-form-fieldset": {
      "legend": {
        "border": {
          "after": {
            "flex-grow": {"value": 1}
          },
          "before": {
            "flex-grow": {"value": 0},
            "inline-size": {"value": "24px"}
          }
        },
        "border-color": {"value": "#000000"},
        "border-gap": {"value": "4px"},
        "border-style": {"value": "solid"},
        "border-width": {"value": "1px"},
        "margin-block-end": {"value": "8px"}
      }
    }
  }
}