cannot control position of timeline elements

[TheophileMot]

I'm using visjs with stacking turned off, so that each row (except the last) has the same height.

Whenever the timeline renders, it overwrites the top and transform CSS properties of each item, making it impossible to reposition them. So, for example, if you have an item like so:

{
  id: 1,
  group: 1,
  content: 'asdf',
  style: "top: 0"
}

then as soon as you drag the timeline, the corresponding DOM element will have style="top: 5px;", popping it out of place. Is there a workaround for this?