{
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      "name": "LayoutView #document",
      "bounds": [800, 600],
      "drawsContent": false,
      "backgroundColor": "#FFFFFF"
    },
    {
      "name": "Scrolling Layer",
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    },
    {
      "name": "Scrolling Contents Layer",
      "bounds": [800, 600],
      "contentsOpaque": true,
      "backgroundColor": "#FFFFFF"
    },
    {
      "name": "LayoutBlockFlow (positioned) DIV class='fixedpos'",
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      "bounds": [800, 550],
      "contentsOpaque": true,
      "backgroundColor": "#ADD8E6"
    },
    {
      "name": "Child Containment Layer",
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    },
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      "name": "LayoutBlockFlow (positioned) DIV class='compositedlayer'",
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      "backgroundColor": "#D3D3D3",
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      "name": "LayoutBlockFlow (positioned) DIV class='notsquashedelement'",
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      "backgroundColor": "#008000"
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}