layer at (0,0) size 800x600
  RenderView at (0,0) size 800x600
layer at (0,0) size 512x600
  RenderSVGRoot {svg} at (0,0) size 512x100
    RenderSVGHiddenContainer {defs} at (0,0) size 0x0
      RenderSVGResourcePattern {pattern} [id="pattern"] [patternUnits=userSpaceOnUse] [patternContentUnits=userSpaceOnUse]
        RenderSVGRect {rect} at (0,0) size 256x600 [fill={[type=SOLID] [color=#000000]}] [x=0.00] [y=0.00] [width=256.00] [height=8192.00]
    RenderSVGRect {rect} at (0,0) size 512x100 [fill={[type=PATTERN] [id="pattern"]}] [x=0.00] [y=0.00] [width=512.00] [height=100.00]
