Sticky content

(Frame scrolling node
  (scrollable area size 800 600)
  (contents size 800 600)
  (scrollable area parameters 
    (horizontal scroll elasticity 2)
    (vertical scroll elasticity 2)
    (horizontal scrollbar mode 0)
    (vertical scrollbar mode 0))
  (layout viewport at (0,0) size 800x600)
  (min layout viewport origin (0,0))
  (max layout viewport origin (0,0))
  (behavior for fixed 0)
  (children 2
    (Overflow scrolling node
      (scrollable area size 385 285)
      (contents size 385 1100)
      (scrollable area parameters 
        (horizontal scroll elasticity 0)
        (vertical scroll elasticity 0)
        (horizontal scrollbar mode 0)
        (vertical scrollbar mode 0)
        (has enabled vertical scrollbar 1))
    )
    (Overflow scroll proxy node
      (related overflow scrolling node scroll position (0,0))
      (children 1
        (Sticky node
          (anchor edges: AnchorEdgeTop )
          (top offset 10.00)
          (containing block rect at (50,50) size 285x1000)
          (sticky box rect at (50,50) size 285x18)
          (constraining rect at (0,0) size 385x285)
          (sticky offset at last layout width=0 height=0)
          (layer position at last layout (50,50))
        )
      )
    )
  )
)