1 layer at (0,0) size 800x600
2 RenderView at (0,0) size 800x600
3 layer at (0,0) size 800x21
4 RenderBlock {svg} at (0,0) size 800x21 [color=#008000]
5 RenderInline {rect} at (0,0) size 0x0
6 RenderText {#text} at (0,0) size 184x21
7 text run at (0,0) width 184: "This line should be green."