1 layer at (0,0) size 800x600
2 RenderView at (0,0) size 800x600
3 layer at (0,0) size 800x600
4 RenderBlock {HTML} at (0,0) size 800x600
5 RenderBody {BODY} at (8,8) size 784x584
6 RenderBlock (floating) {DIV} at (0,0) size 50x400 [bgcolor=#008000]
7 RenderFieldSet {FIELDSET} at (50,0) size 732x49.59 [border: (2px groove #C0C0C0)]
8 RenderBlock {LEGEND} at (14,0) size 80.88x16
9 RenderText {#text} at (2,0) size 77x16
10 text run at (2,0) width 77: "Hello world"
11 RenderBlock (anonymous) at (14,21.59) size 704x16
12 RenderText {#text} at (0,0) size 143x16
13 text run at (0,0) width 143: "Some fieldset content."