constructor( element ) {

		super( element );

		/**
		 * This flag can be used for type testing.
		 *
		 * @type {boolean}
		 * @readonly
		 * @default true
		 */
		this.isCSS3DSprite = true;

		/**
		 * The sprite's rotation in radians.
		 *
		 * @type {number}
		 * @default 0
		 */
		this.rotation2D = 0;

	}
Constructs a new CSS3D sprite object.

@param {DOMElement} [element] - The DOM element.