getLocalBoundingBox( element ) {

		const presentationScale = this.Reveal.getScale();

		return {
			x: Math.round( ( element.offsetLeft * presentationScale ) * 100 ) / 100,
			y: Math.round( ( element.offsetTop * presentationScale ) * 100 ) / 100,
			width: Math.round( ( element.offsetWidth * presentationScale ) * 100 ) / 100,
			height: Math.round( ( element.offsetHeight * presentationScale ) * 100 ) / 100
		};

	}
Helper method which returns a bounding box based on
the given elements offset coordinates.

@param {HTMLElement} element
@return {Object} x, y, width, height