jquery "invalid object initializer"

$(document).ready(function(){

  $(".has-sub ul").removeClass('quick-access').addClass('quick-access-js');
//   $(".has-sub ul").addClass('quick-access-js');
  $(".has-sub").hover(
    function()
    { //When mouse rolls over
      $(".quick-access-js").css({'left: auto; position: relative;'});
      $(".quick-access-js").delay(100).animate({ height: ['7.5em', 'swing'] }, 500 );
    },
    function()
    { //When mouse is removed
      $(".quick-access-js").delay(100).animate({ height: ['0px', 'swing'] }, 500 );
      $(".quick-access-js").css({'left: auto; absolute: -999em;'});
  }
  );

});