1 layer at (0,0) size 800x600
2 RenderView at (0,0) size 800x600
3 layer at (0,0) size 800x211
4 RenderBlock {HTML} at (0,0) size 800x211
5 RenderBody {BODY} at (8,16) size 784x187
6 RenderBlock {P} at (0,0) size 784x16
7 RenderText {#text} at (0,0) size 407x16
8 text run at (0,0) width 407: "The square below should be exactly 50 pixels high on the ruler."
9 RenderBlock {DIV} at (0,32) size 784x155
10 RenderImage {IMG} at (45,0) size 50x50