get div position from top then animate code example

Example 1: scroll to element jquery

$('html, body').animate({
  scrollTop: $("#grepperRocks").offset().top
});

Example 2: jquery scroll to element

$("#button").click(function() {
    $([document.documentElement, document.body]).animate({
        scrollTop: $("#elementtoScrollToID").offset().top
    }, 2000);
});