code: function( property, value, asString ) {
  			if ( asString )
  				return cssVendorPrefix + property + ':' + value + ';' + property + ':' + value;
  
  			var ret = {};
  			ret[ property ] = value;
  			ret[ cssVendorPrefix + property ] = value;
  
  			return ret;
  		}
docs: Generates an object or a string containing vendor-specific and vendor-free CSS properties.
  
  CKEDITOR.tools.cssVendorPrefix( 'border-radius', '0', true );
  // On Firefox: '-moz-border-radius:0;border-radius:0'
  // On Chrome: '-webkit-border-radius:0;border-radius:0'
  
  @param {String} property The CSS property name.
  @param {String} value The CSS value.
  @param {Boolean} [asString=false] If `true`, then the returned value will be a CSS string.
  @returns {Object/String} The object containing CSS properties or its stringified version.