# Bug 1258112: a border edge thinner than a device pixel must not vanish.
# A 1px solid border under a scale(0.5) transform composites its edges as
# 0.5-device-pixel-wide quads; edge antialiasing then fades them until sides
# of the border disappear entirely. The edge thickness must instead be snapped
# up to a whole device pixel (phase-independently), so every side renders as a
# stable 1px outline matching the reference. With transform-origin at 0,0 the
# outer box lands on integer device pixels (20,20)-(120,120) -> (10,10)-(60,60).
---
root:
  items:
    - type: stacking-context
      bounds: [0, 0, 300, 300]
      transform: scale(0.5)
      transform-origin: 0 0
      items:
        - type: border
          bounds: [20, 20, 100, 100]
          width: [1, 1, 1, 1]
          border-type: normal
          style: solid
          color: [black, black, black, black]