layer at (0,0) size 800x600
RenderView at (0,0) size 800x600
-layer at (0,0) size 800x54
- RenderBlock {test} at (0,0) size 800x54 [bgcolor=#00FF00]
- RenderBlock {p} at (0,16) size 800x22
- RenderText {#text} at (0,0) size 338x22
- text run at (0,0) width 338: "The background of the document should be green"
+layer at (0,0) size 800x53
+ RenderBlock {test} at (0,0) size 800x53 [bgcolor=#00FF00]
+ RenderBlock {p} at (0,16) size 800x21
+ RenderText {#text} at (0,0) size 352x21
+ text run at (0,0) width 352: "The background of the document should be green"