[Equalizer] equalizeOnStack callout issue

[designerno1]

equalize on stack not working if watched in callout

as of:
https://developer.mozilla.org/en-US/docs/Web/API/HTMLElement/offsetTop
https://developer.mozilla.org/en-US/docs/Web/API/HTMLelement/offsetParent

_isStacked() {
  return this.$watched[0].offsetTop !== this.$watched[1].offsetTop;
}

offsetTop is the value related to the offsetParent and because callout has position: relative; ist the offsetTop related to the callout in my case the same on the first and second

maybe using getBoundingClientRect() or offset().top?

https://codepen.io/designerno1/full/JXaMaw/