layer at (0,0) size 800x600
  RenderView at (0,0) size 800x600
layer at (0,0) size 800x40
  RenderBlock {test} at (0,0) size 800x40
    RenderBlock {tests} at (0,0) size 800x40 [color=#FF0000]
      RenderBlock {testA} at (0,0) size 800x20 [color=#008000]
        RenderText {#text} at (0,0) size 138x19
          text run at (0,0) width 138: "This should be green."
      RenderBlock {testB} at (0,20) size 800x20 [color=#008000]
        RenderText {#text} at (0,0) size 138x19
          text run at (0,0) width 138: "This should be green."