layer at (0,0) size 800x600 RenderView at (0,0) size 800x600 layer at (0,0) size 800x34 RenderBlock {root} at (0,0) size 800x34 RenderBlock {t} at (0,0) size 800x17 [bgcolor=#00FF00] RenderText {#text} at (0,0) size 299x17 text run at (0,0) width 299: "This sentence should have a green background." RenderBlock {t} at (0,17) size 800x17 [bgcolor=#00FF00] RenderText {#text} at (0,0) size 299x17 text run at (0,0) width 299: "This sentence should have a green background."