code: function compareCssText( source, target ) {
  		if ( typeof source == 'string' )
  			source = CKEDITOR.tools.parseCssText( source );
  		if ( typeof target == 'string' )
  			target = CKEDITOR.tools.parseCssText( target, true );
  
  		for ( var name in source ) {
  			if ( !( name in target && ( target[ name ] == source[ name ] || source[ name ] == 'inherit' || target[ name ] == 'inherit' ) ) )
  				return false;
  		}
  		return true;
  	}
docs: Compare two bunch of styles, with the speciality that value 'inherit' is treated as a wildcard which will match any value. @param {Object/String} source @param {Object/String} target