layer at (0,0) size 800x600
  RenderView at (0,0) size 800x600
layer at (0,0) size 800x600
  RenderBlock {HTML} at (0,0) size 800x600
    RenderBody {BODY} at (8,8) size 784x584
      RenderBlock (anonymous) at (0,0) size 784x54
        RenderText {#text} at (0,0) size 779x53
          text run at (0,0) width 408: "This is a test of dynamic rem unit scaling. "
          text run at (407,0) width 372: "Changes to the root element's font size"
          text run at (0,27) width 702: "need to cause dependent elements in the document tree to update as well."
      RenderBlock {DIV} at (0,54) size 784x39
        RenderBlock (anonymous) at (0,0) size 784x12
          RenderText {#text} at (0,0) size 107x12
            text run at (0,0) width 107: "This text should be small."
        RenderBlock {DIV} at (0,12) size 784x27
          RenderText {#text} at (0,0) size 445x26
            text run at (0,0) width 445: "This text should match the root (and be 24px)."