css: function( key, value ) {
                  //        <summary>
                  //                Set a single style property to a value, on all matched elements.
                  //                If a number is provided, it is automatically converted into a pixel value.
                  //                Part of CSS
                  //        </summary>
                  //        <returns type="jQuery" />
                  //        <param name="key" type="String">
                  //                The name of the property to set.
                  //        </param>
                  //        <param name="value" type="String">
                  //                The value to set the property to.
                  //        </param>
  
                  // ignore negative width and height values
                  if ( (key == 'width' || key == 'height') && parseFloat(value) < 0 )
                          value = undefined;
                  return this.attr( key, value, "curCSS" );
          },