external prevent_default : Dom.event -> unit = "preventDefault"
  [@@bs.send]

external stop_propagation : Dom.event -> unit = "stopPropagation"
  [@@bs.send]

external target : Dom.event -> Dom.element = "target"
  [@@bs.get]

external related_target : Dom.event -> Dom.element Js.Nullable.t = "relatedTarget"
  [@@bs.get]

external page_x : Dom.mouseEvent -> float = "pageX"
  [@@bs.get]

external page_y : Dom.mouseEvent -> float = "pageY"
  [@@bs.get]