---
root:
  items:
    - type: stacking-context
      bounds: [0, 0, 100, 100]
      items:
        - type: border
          bounds: [ 10, 10, 90, 80 ]
          width: 3
          border-type: normal
          style: solid
          color: [ black, black, black, black ]
          radius: 40.5