child-of-relative-parent:
  offsetParent: relative-parent-in-backdrop-filter
  offsetLeft: 10
  offsetTop: 0
static-child-in-transform:
  offsetParent: relative-parent-in-transform
  offsetLeft: 0
  offsetTop: 0
fixed-child-in-transform:
  offsetParent: transform-ancestor
  offsetLeft: 30
  offsetTop: 20
static-child-of-transform:
  offsetParent: transform-ancestor
  offsetLeft: 0
  offsetTop: 50
fixed-without-fixed-position-containing-block:
  offsetParent: null
  offsetLeft: 5
  offsetTop: 40
child-of-boxless-fixed-ancestor:
  offsetParent: BODY
  offsetLeft: 0
  offsetTop: 150
child-of-boxless-fixed-in-relative-parent:
  offsetParent: relative-parent-of-boxless-fixed
  offsetLeft: 0
  offsetTop: 0