Smart, Sticky, Responsive Navigation With jQuery And CSS3

Smart, Sticky, Responsive Navigation With jQuery And CSS3
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License: MIT
   

A fully responsive header navigation that auto shows/hides as you scroll the webpage, and collapses into a hamburger dropdown menu on small screens. 

How to use it:

1. Add the header navigation items together with the hamburger menu toggle to the webpage.

<nav id="navigation">
  <a href="#" class="logo">Home</a>
  <a aria-label="mobile menu" class="nav-toggle">
    <span></span>
    <span></span>
    <span></span>
  </a>
    <ul class="menu-left">
      <li><a href="#cat">Category</a></li>
      <li><a href="#rec">Recommoended</a></li>
      <li><a href="#about">About</a></li>
      <li><a href="#blog">Blog</a></li>
      <li><a href="#contact">Contact</a></li>
    </ul>
</nav>

2. The primary CSS styles for the header navigation.

.menu-left a {
  display: inline-block;
  position: relative;
  padding-bottom: 0px;
  transition: color .35s ease;
}

.menu-left a:before {
  content: '';
  display: block;
  position: absolute;
  left: 0;
  bottom: 0;
  height: 2px;
  width: 0;
  transition: width 0s ease, background .35s ease;
}

.menu-left a:after {
  content: '';
  display: block;
  position: absolute;
  right: 0;
  bottom: 0;
  height: 2px;
  width: 0;
  background: #000;
  transition: width .35s ease;
}

.menu-left a:hover:before {
  width: 100%;
  background: #000;
  transition: width .35s ease;
}

.menu-left a:hover:after {
  width: 100%;
  background: transparent;
  transition: all 0s ease;
}

header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  padding: .5rem 0;
  background: rgba(255, 255, 255, 0.92);
  z-index: 3;
  will-change: transform;
  transition: background 0.3s, -webkit-transform 0.5s cubic-bezier(0.694, 0.048, 0.335, 1);
  transition: transform 0.5s cubic-bezier(0.694, 0.048, 0.335, 1), background 0.3s;
  transition: transform 0.5s cubic-bezier(0.694, 0.048, 0.335, 1), background 0.3s, -webkit-transform 0.5s cubic-bezier(0.694, 0.048, 0.335, 1);
  transform: translateY(0);
  -webkit-transform: translateY(0);
}

header nav .logo {
  float: left;
  padding-top: .25rem;
  padding-bottom: .25rem;
  margin-right: 1rem;
  font-size: 1.25rem;
  line-height: inherit;
  font-weight: 500;
  color: black;
}

header nav .logo:after {
  content: '';
  display: table;
  clear: both;
}

header nav ul {
  list-style: none;
  padding-left: 0;
  margin: 0;
}

header nav ul li {
  float: none;
  margin-left: 0;
}

@media (min-width: 768px) {

header nav ul li {
  float: left;
  margin-left: 1rem;
}
}

header nav ul li a { display: block; }

@media (min-width: 576px) {

header nav ul li a { display: block;  padding: .425rem 0rem;
}
}

@media (max-width: 768px) {

ul { clear: both; }

ul li { padding: .5em 0; }
}

.hide-nav {
 transform: translateY(-120% !important); -webkit-transform: translateY(-120%) !important; }

ul.menu-left {
  display: block;
  max-height: 0;
  overflow: hidden;
  -webkit-transition: all 0.3s ease-out;
  -moz-transition: all 0.3s ease-out;
  -ms-transition: all 0.3s ease-out;
  -o-transition: all 0.3s ease-out;
  transition: all 0.3s ease-out;
  z-index: 10;
}

@media (min-width: 768px) {

ul.menu-left {
  display: block !important;
  float: right;
  max-height: none;
}
}

ul.menu-left:before {
  content: '';
  display: table;
  clear: both;
}

ul.menu-left.collapse { max-height: 15em !important; }

3. The CSS styles for the hamburger menu toggle.

.nav-toggle {
  display: block;
  border-radius: 5px;
  background-color: transparent;
  float: right;
  height: 38px;
  width: 38px;
  cursor: pointer;
  padding: 8px 8px;
}

.nav-toggle.open span:first-child { transform: rotate(45deg) translate(4.4px, 4.4px); }

.nav-toggle.open span:nth-child(2) {
  width: 0%;
  opacity: 0;
}

.nav-toggle.open span:last-child { transform: rotate(-45deg) translate(4.4px, -4.4px); }

@media (min-width: 768px) {

.nav-toggle { display: none; }
}

.nav-toggle span {
  position: relative;
  display: block;
  height: 2px;
  width: 100%;
  margin-top: 4px;
  background-color: #000;
  transition: all .25s;
}

4. Put the necessary jQuery library at the end of the document.

<script src="//code.jquery.com/jquery-3.1.1.min.js"></script> 

5. The core JavaScript for the responsive menu.

// TOGGLE HAMBURGER & COLLAPSE NAV
$('.nav-toggle').on('click', function() {
  $(this).toggleClass('open');
  $('.menu-left').toggleClass('collapse');
});

// REMOVE X & COLLAPSE NAV ON ON CLICK
$('.menu-left a').on('click', function() {
  $('.nav-toggle').removeClass('open');
  $('.menu-left').removeClass('collapse');
});

6. The JavaScript to show / hide the navigation menu on scroll.

// Hide Header on on scroll down
var didScroll;
var lastScrollTop = 0;
var delta = 5;
var navbarHeight = $('header').outerHeight();

$(window).scroll(function(event){
    didScroll = true;
});

setInterval(function() {
    if (didScroll) {
        hasScrolled();
        didScroll = false;
    }
}, 250);

function hasScrolled() {
    var st = $(this).scrollTop();

    // Make sure they scroll more than delta
    if(Math.abs(lastScrollTop - st) <= delta)
        return;

    // If they scrolled down and are past the navbar, add class .nav-up.
    // This is necessary so you never see what is "behind" the navbar.
    if (st > lastScrollTop && st > navbarHeight){
        // Scroll Down
        $('header').removeClass('show-nav').addClass('hide-nav');
        $('.nav-toggle').removeClass('open');
        $('.menu-left').removeClass('collapse');
    } else {
        // Scroll Up
        if(st + $(window).height() < $(document).height()) {
            $('header').removeClass('hide-nav').addClass('show-nav');
        }
    }

    lastScrollTop = st;
}

This awesome jQuery plugin is developed by hollow3d. For more Advanced Usages, please check the demo page or visit the official website.