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root:
bounds: [0, 0, 1024, 10000]
scroll-offset: [0, 100]
items:
- type: stacking-context
bounds: [0, 0, 50, 50]
items:
# This item should not scroll out of view because it is fixed position.
- type: rect
bounds: [0, 0, 50, 50]
color: green
spatial-id: root-reference-frame
- type: stacking-context
bounds: [0, 0, 50, 50]
transform: translate(60, 100)
id: 100
items:
- type: stacking-context
bounds: [0, 0, 50, 50]
items:
# Even though there is a custom clip-scroll ID, it should scroll,
# because it is fixed relative to its reference frame. The reference frame
# of this stacking context is the stacking context parent because it has
# a transformation.
- type: rect
bounds: [0, 0, 50, 50]
color: green
- type: stacking-context
bounds: [120, 0, 50, 200]
transform: translate(0, 0)
id: 101
items:
# This is similar to the previous case, but ensures that this still works
# even with an identity transform.
- type: stacking-context
bounds: [0, 0, 50, 200]
items:
- type: rect
bounds: [0, 100, 50, 50]
color: green
- type: stacking-context
bounds: [180, 0, 50, 200]
perspective: 1
id: 102
items:
# This is similar to the previous case, but for perspective.
- type: stacking-context
bounds: [0, 0, 50, 200]
items:
- type: rect
bounds: [0, 100, 50, 50]
color: green