layer at (0,0) size 812x585 RenderCanvas at (0,0) size 800x585 layer at (0,0) size 812x585 RenderBlock {HTML} at (0,0) size 800x585 [bgcolor=#FFFFFF] RenderBody {BODY} at (0,0) size 800x585 RenderFlexibleBox {DIV} at (0,0) size 800x585 RenderBlock {DIV} at (0,0) size 800x54 RenderText {TEXT} at (0,0) size 800x54 text run at (0,0) width 485: "This header should remain at the top of the browser window as you resize it. " text run at (485,0) width 183: "It can wrap to multiple lines. " text run at (668,0) width 132: "The center should be" text run at (0,18) width 254: "filled with an olive-bordered green box. " text run at (254,18) width 499: "It should start beneath the header, end above the footer, and fill the width of the" text run at (0,36) width 111: "browser window." RenderPartObject {IFRAME} at (0,54) size 812x513 [bgcolor=#008000] [border: (10px solid #808000)] layer at (0,0) size 777x493 RenderCanvas at (0,0) size 777x493 RenderBlock {DIV} at (0,567) size 800x18 RenderText {TEXT} at (0,0) size 664x18 text run at (0,0) width 407: "This footer should remain at the bottom of the browser window. " text run at (407,0) width 257: "It can wrap to multiple lines if necessary."