The width (magnitude on the X axis), in CSS pixels (see [[CSS21]]), of the <a>contact geometry</a> of the pointer. This value MAY be updated on each event for a given pointer. For devices which have a contact geometry but the actual geometry is not reported by the hardware, a default value SHOULD be provided by the <a>user agent</a> to approximate the geometry typical of that pointer type. Otherwise, the value MUST be 0.

The height (magnitude on the Y axis), in CSS pixels (see [[CSS21]]), of the <a>contact geometry</a> of the pointer. This value MAY be updated on each event for a given pointer. For devices which have a contact geometry but the actual geometry is not reported by the hardware, a default value SHOULD be provided by the <a>user agent</a> to approximate the geometry typical of that pointer type. Otherwise, the value MUST be 0.

<dt>double width = 0</dt>

<dt>double height = 0</dt>