code: function updateAttributes( element ) {
  		var attrs = element.attributes,
  			styles;
  
  		// Will be recreated later if any of styles/classes exists.
  		delete attrs.style;
  		delete attrs[ 'class' ];
  
  		if ( ( styles = CKEDITOR.tools.writeCssText( element.styles, true ) ) )
  			attrs.style = styles;
  
  		if ( element.classes.length )
  			attrs[ 'class' ] = element.classes.sort().join( ' ' );
  	}
docs: Copy element's styles and classes back to attributes array.