Why doesn't scrollTop jquery work in ie(11v)?

Question

JavaScript

$(document).ready(function(){
$(window).scroll(function(){ // this part works
if($(this).scrollTop() > 300){
$('.totop').show (300)
}else{
$('.totop').hide(300)
}
});

var he1 = $('nav').height()*13;
var he2 = he1 + $('.t1') .height();
var he3 = he2 + $('.serv').height();

// This one doesn't. Should scroll on click...


$('.scroll1').click(function(){
$ ('body').animate({scrollTop : he1 }, 1500);
});

$('.scroll2').click(function(){
$('body').animate({scrollTop : he2 }, 1500 )
});

$('.scroll3').click(function(){
$('body').animate({scrollTop : he3 }, 1500)
});

$('.totop').click(function(){
$('body').animate({scrollTop: 0}, 500)
});
})

Why does this code work in chrome and not in IE?

Answer 1

$('html, body').animate({
    scrollTop: he1
}, 1500);

Answer 2

Here is crap! The main thing was writing either html or body ... Separately, it did not work, but together it worked. Thank you)