 * Core styles.
					 */
					coreStyles_bold: { element: 'b' },
					coreStyles_italic: { element: 'i' },
					coreStyles_underline: { element: 'u' },
					coreStyles_strike: { element: 'strike' },

					/*
					 * Font face.
					 */

					// Define the way font elements will be applied to the document.
					// The "font" element will be used.
					font_style: {
						element: 'font',
						attributes: { 'face': '#(family)' }
					},

					/*
					 * Font sizes.
					 */
					fontSize_sizes: 'xx-small/1;x