javascript - jQuery Fade Out on Scroll not working -


i using fade out div on scroll not working, 600 offset of div. cant figure out why not working.

$(window).scroll(function(){  wscroll = $(this).scrolltop();   $('.hack').css({     'transform' : 'translate(0px , ' + wscroll/2  +'%)',     'opactiy' : 1 - (wscroll/600)  });  }); 

$(window).scroll(function () { var scrolltop = $(window).scrolltop(); var height = $(window).height(); $('.logo_container, .slogan').css({     'opacity': ((height - scrolltop) / height) }); });

demo


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