bug in css and effects

[acorp56000@…]

 $('#id').animate({backgroundPosition: '100px 0px'},1000 );

no work in jQuery v. >1.5

$('#clickme').click(function() {
  $('#book').slideDown('slow', function() {
    // Animation complete.
  });
});

no work in jQuery v. >1.6.2

[dmethvin]

All animated properties should be animated to a single numeric value, except as noted below; most properties that are non-numeric cannot be animated using basic jQuery functionality. (For example, width, height, or left can be animated but background-color cannot be.) --  http://api.jquery.com/animate

[anonymous]

No answer there on this issue!

[anonymous]

нет там ответа по данному вопросу