vbasoon

<header id="header" className="fixed-top">
            <nav className="navbar navbar-expand-lg navbar-dark ">
               <div className="container">
                  <a href="#" className="navbar-brand">BVM Corp</a>
                  <button
                     className="navbar-toggler"
                     type="button"
                     data-toggle="collapse"
                     data-target="#navContent"
                     aria-controls="navContent"

vbasoon

jQuery(document).ready(function($) {
  $('nav').on('click', function() {
    if ($(this).hasClass('down')) {
      var movePos = $(window).scrollTop() + $(window).height();
    }
    if ($(this).hasClass('top')) {
      var movePos = $(window).scrollTop() - $(window).height();
    }
    $('html, body').animate({
      scrollTop: movePos}, 600);