layer at (0,0) size 800x600 RenderView at (0,0) size 800x600 layer at (0,0) size 800x40 RenderBlock {root} at (0,0) size 800x40 RenderBlock {t} at (0,0) size 800x20 [bgcolor=#00FF00] RenderText {#text} at (0,0) size 303x19 text run at (0,0) width 303: "This sentence should have a green background." RenderBlock {t} at (0,20) size 800x20 [bgcolor=#00FF00] RenderText {#text} at (0,0) size 303x19 text run at (0,0) width 303: "This sentence should have a green background."