.section {
  height: 100vh;
  margin-top: 1000px;
  background: royalblue;
  display: flex;
  justify-content: center;
  align-items: center;
  font-size: 50px;
  font-weight: 700;
  color: #fff;
}

// jquery
$('.btn').click(function () {
  const scrollTop = $('.section').offset().top;
  $('html, body').animate({scrollTop: scrollTop}, 500);
});