{
  "layers": [
    {
      "name": "Scrolling background of LayoutView #document",
      "bounds": [800, 600],
      "contentsOpaque": true,
      "backgroundColor": "#FFFFFF"
    },
    {
      "name": "LayoutBlockFlow (positioned, relayout-boundary) DIV id='scroller'",
      "bounds": [200, 200],
      "drawsContent": false,
      "transform": 1
    },
    {
      "name": "LayoutBlockFlow (positioned, relayout-boundary) DIV id='scroller'",
      "bounds": [185, 200],
      "drawsContent": false,
      "transform": 1
    },
    {
      "name": "VerticalScrollbar",
      "position": [185, 0],
      "bounds": [15, 200],
      "contentsOpaque": true,
      "transform": 1
    },
    {
      "name": "LayoutBlockFlow (positioned, relayout-boundary) DIV id='scroller'",
      "bounds": [185, 4900],
      "invalidations": [
        [0, 2400, 100, 100]
      ],
      "transform": 2
    }
  ],
  "transforms": [
    {
      "id": 1,
      "transform": [
        [1, 0, 0, 0],
        [0, 1, 0, 0],
        [0, 0, 1, 0],
        [300, 300, 0, 1]
      ]
    },
    {
      "id": 2,
      "parent": 1,
      "transform": [
        [1, 0, 0, 0],
        [0, 1, 0, 0],
        [0, 0, 1, 0],
        [0, -2350, 0, 1]
      ]
    }
  ]
}