Back To Top Button

back-to-top.js

// Back To Top button
  var offset = 500;
  var offsetOpacity = 1500;
  var scrollDuration = 700;
  var $backToTop = $('.gh-top');

  $(window).scroll(function () {
    if ($(this).scrollTop() > offset) {
      $backToTop.addClass('gh-top-visible');
    } else {
      $backToTop.removeClass('gh-top-visible');
    }
  });

  $backToTop.click(function (e) {
    e.preventDefault();
    $('body, html').animate({
      scrollTop: 0,
    }, scrollDuration);
  });