layer at (0,0) size 800x600
  RenderView at (0,0) size 800x600
layer at (0,0) size 800x57
  RenderBlock {test} at (0,0) size 800x57
    RenderBlock {p} at (0,16) size 800x25
      RenderButton {button} at (2,2) size 508x21 [bgcolor=#F0F0F0] [border: (2px outset #F0F0F0)]
        RenderBlock (anonymous) at (8,3) size 492x15
          RenderText {#text} at (0,0) size 492x15
            text run at (0,0) width 492: "Activating (e.g. holding the mouse button down on) this button should make it go green."