layer at (0,0) size 800x600
  RenderView at (0,0) size 800x600
layer at (0,0) size 800x284
  RenderBlock {HTML} at (0,0) size 800x284
    RenderBody {BODY} at (8,16) size 784x252
      RenderBlock {P} at (0,0) size 784x20
        RenderText {#text} at (0,0) size 607x19
          text run at (0,0) width 371: "There should be no red below, just two 300\x{D7}100 pixel green "
          text run at (371,0) width 236: "rectangles seperated by 1em of margin."
      RenderBlock {DIV} at (0,36) size 300x100 [bgcolor=#FF0000]
        RenderBlock {P} at (0,0) size 600x100
          RenderImage {IMG} at (0,0) size 300x100
          RenderText {#text} at (0,0) size 0x0
layer at (8,168) size 300x100
  RenderBlock (relative positioned) {DIV} at (0,152) size 300x100
    RenderBlock {P} at (0,0) size 600x100
      RenderImage {IMG} at (0,0) size 300x100
      RenderText {#text} at (0,0) size 0x0
      RenderText {#text} at (0,0) size 0x0
layer at (8,168) size 300x100
  RenderBlock (positioned) {SPAN} at (0,0) size 300x100 [bgcolor=#008000]