problem description
for example, when you click on the aiming point G, you want to bring a little animation effect to bring the G on the right back to the top, but the animation is there, and the position obtained is not accurate
. 
related codes
/ / Please paste the code text below (do not replace the code with pictures)
$(document) .on ("click",".letterList li",function () {
) var top= $($(this).children("a").attr("href")).offset().top - 53;
$(".cityList").animate({
scrollTop: top
}, 500);
console.log($($(this).children("a").attr("href")),$(this).children("a").attr("href"));
});