The height read-only property of the PointerEvent interface represents the height of the pointer's contact geometry, along the y-axis (in CSS pixels). Depending on the source of the pointer device (for example a finger), for a given pointer, each event may produce a different value.
If the input hardware cannot report the contact geometry to the browser, the height defaults to 1.
The height of the event's contact area (in CSS pixels).
An example of this property is included in the PointerEvent.width example.