Smooth Scroll Jquery version Plus mobile Navbar close (bootstrap)

index.js

/* =========================Smooth single page Navigaton======================== */

// Select all links with hashes
$('a[href*="#"]')
  // Remove links that don't actually link to anything
  .not('[href="#"]')
  .not('[href="#0"]')
  .click(function(event) {
    // On-page links
    if (
      location.pathname.replace(/^\//, '') == this.pathname.replace(/^\//, '') 
      && 
      location.hostname == this.hostname
    ) {
      // Figure out element to scroll to
      var target = $(this.hash);
      target = target.length ? target : $('[name=' + this.hash.slice(1) + ']');
      // Does a scroll target exist?
      if (target.length) {
        // Only prevent default if animation is actually gonna happen
        event.preventDefault();
        $('html, body').animate({
          scrollTop: target.offset().top
        }, 1000, function() {
          // Callback after animation
          // Must change focus!
          var $target = $(target);
          $target.focus();
          if ($target.is(":focus")) { // Checking if the target was focused
            return false;
          } else {
            $target.attr('tabindex','-1'); // Adding tabindex for elements not focusable
            $target.focus(); // Set focus again
          };
        });
      }
    }
  });

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

/*==================close navbar on click================*/
 $('.navbar-nav>li>a').on('click', function(){
    $('.navbar-collapse').collapse('hide');
 });

navbar.css

.navbar {
    background-color: #ffffff !important;
    opacity: 0.9;
    color: #000000;

}

.navbar-expand-lg .navbar-nav {
    padding: 10px 0;
}

/* center mobile navbar */
.navbar-expand-lg .navbar-nav .nav-item .nav-link {
    padding: 10px 15px;
    color: #060606;
    text-align: center;
    text-transform: capitalize;
/*     text-transform: uppercase; */
}

.navbar-expand-lg .navbar-nav .nav-item .nav-link:hover {
    color: #000000;
    background-color: #AB4227;
    border-radius: 5px;
}

CSS To center Bootstrap Mobile Navbar

/* center mobile navbar */ .navbar-expand-lg .navbar-nav .nav-item .nav-link { padding: 10px 15px; color: #060606; text-align: center; text-transform: uppercase; }