# Ensure that we correctly calculate the UV sampling rect for the backdrop
# Similar to the mix-blend-mode-overflowing-child.html test in Gecko
---
root:
  items:
    - type: stacking-context
      blend-container: true
      items:
        - type: rect
          bounds: [0, 0, 100, 100]
          color: green
        - type: stacking-context
          bounds: [50, 50, 100, 100]
          mix-blend-mode: difference
          items:
            - type: rect
              bounds: [0, 0, 100, 100]
              color: green
