layer at (0,0) size 800x600 RenderCanvas at (0,0) size 800x600 layer at (0,0) size 800x54 RenderBlock {HTML} at (0,0) size 800x54 RenderBody {BODY} at (8,8) size 784x32 RenderBlock {PRE} at (0,0) size 784x32 RenderText {TEXT} at (0,16) size 104x16 text run at (0,16) width 104: "Some pre text"