Answers for "how to scroll div on current element"

js scrolling in div

var divElement = document.getElementById("div");
divElement.scroll({
	top: divElement.scrollHeight,//scroll to the bottom of the element
	behavior: 'smooth' //auto, smooth, initial, inherit
});

scrool to top jquerry

$("a[href='#top']").click(function() {
  $("html, body").animate({ scrollTop: 0 }, "slow");
  return false;
});