Cool Off-canvas Burger Menu with jQuery and CSS3

A cool off-canvas hamburger navigation menu for your mobile & desktop website, built using jQuery and CSS3 transforms &transitions.

Features:

• CSS3 powered animations
• Modernizr fallback for IE8
• Keyboard support (Press Esc)
• Cool link hover effect

How to use it:

1. Link to the required modernizr.js JavaScript library.

<script src="//cdnjs.cloudflare.com/ajax/libs/modernizr/2.8.3/modernizr.min.js"></script>

2. Include the OPTIONAL Font Awesome 4 for the toggle icon.

<link rel="stylesheet" href="//netdna.bootstrapcdn.com/font-awesome/4.3.0/css/font-awesome.min.css">

3. Wrap your main content, off-canvas navigation and hamburger toggler into a container called 'site-wrapper'.

<div id="site-wrapper">
  <nav class="menu" role="navigation">
    <ul>
      <li><a href="#">Home</a></li>
      <li><a href="#">About</a></li>
      <li><a href="#">Gallery</a></li>
      <li><a href="#">Contacts</a></li>
    </ul>
  </nav>
  <a href="#" class="nav-toggle"><span class="fa fa-bars"></span></a>
  <main role="main">
    Main content goes here
  </main>
</div>

4. The primary CSS styles.

* { box-sizing: border-box; }

body, html {
  width: 100%;
  height: 100%;
}

body { overflow-x: hidden; }

#site-wrapper {
  position: relative;
  width: 100%;
  height: 100%;
}

main {
 *zoom: 1;
  width: auto;
  max-width: 1200px;
  float: none;
  display: block;
  margin-right: auto;
  margin-left: auto;
  padding-left: 10px;
  padding-right: 10px;
  margin-top: 20px;
}

main:before, main:after {
  content: '';
  display: table;
}

main:after { clear: both; }

5. The core CSS / CSS3 styles for the off-canvas navigation.

.menu {
  width: 300px;
  height: 100%;
  background: #333;
  position: fixed;
  top: 0;
  right: -300px;
  -webkit-backface-visibility: hidden;
  backface-visibility: hidden;
  overflow: hidden;
  -webkit-transform: translateX(0);
  -ms-transform: translateX(0);
  transform: translateX(0);
  -webkit-transform: translateX(0) translateZ(0);
  transform: translateX(0) translateZ(0);
  -webkit-transform: translate3d(0, 0, 0);
  transform: translate3d(0, 0, 0);
  -webkit-transition: all 0.3s cubic-bezier(0.32, 1.25, 0.375, 1.15);
  transition: all 0.3s cubic-bezier(0.32, 1.25, 0.375, 1.15);
  z-index: 10;
}

.menu.show-nav {
  -webkit-transform: translateX(-300px);
  -ms-transform: translateX(-300px);
  transform: translateX(-300px);
  -webkit-transform: translateX(-300px) tranlateZ(0);
  -ms-transform: translateX(-300px) tranlateZ(0);
  transform: translateX(-300px) tranlateZ(0);
  -webkit-transform: translate3d(-300px, 0, 0);
  transform: translate3d(-300px, 0, 0);
}

.menu ul {
  margin: 0;
  padding: 0;
}

.menu ul li {
  position: relative;
  list-style: none;
  width: 60%;
  margin: 0 auto;
  padding: 20px 10px;
  text-align: center;
  border-top: 1px solid #333;
  box-shadow: 0 -1px 1px -1px #746559;
}

.menu ul li:first-child {
  margin-top: 20px;
  border: 0;
  box-shadow: none;
}

.menu ul li a {
  position: relative;
  font-weight: 300;
  padding: 8px 10px;
  color: rgba(255, 255, 255, 0.7);
  color: white;
  text-decoration: none;
  text-transform: uppercase;
  -webkit-transition: all 0.25s ease-in-out;
  transition: all 0.25s ease-in-out;
}

.menu ul li a:after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 1px;
  background-color: #f38b00;
  visibility: hidden;
  -webkit-transform: scaleX(0);
  -ms-transform: scaleX(0);
  transform: scaleX(0);
  -webkit-transition: all 0.3s cubic-bezier(0.32, 1.25, 0.375, 1.15);
  transition: all 0.3s cubic-bezier(0.32, 1.25, 0.375, 1.15);
}

.no-touch .menu ul li a:hover:after {
  -webkit-transform: scale(1);
  -ms-transform: scale(1);
  transform: scale(1);
  visibility: visible;
}

.menu p {
  color: rgba(255, 255, 255, 0.7);
  position: absolute;
  top: 86%;
  left: 20px;
  font-size: 0.875em;
  text-align: center;
}

.menu p a {
  color: rgba(243, 139, 0, 0.6);
  text-decoration: none;
  -webkit-transition: all 0.3s ease;
  transition: all 0.3s ease;
}

.menu p a:hover {
  color: #f38b00;
  text-decoration: underline;
}

.nav-toggle {
  position: fixed;
  top: 30px;
  right: 30px;
  -webkit-backface-visibility: hidden;
  backface-visibility: hidden;
  -webkit-transform: translateX(0);
  -ms-transform: translateX(0);
  transform: translateX(0);
  -webkit-transform: translateX(0) translateZ(0);
  transform: translateX(0) translateZ(0);
  -webkit-transform: translate3d(0, 0, 0);
  transform: translate3d(0, 0, 0);
  -webkit-transition: all 0.4s cubic-bezier(0.32, 1.25, 0.375, 1.15);
  transition: all 0.4s cubic-bezier(0.32, 1.25, 0.375, 1.15);
  z-index: 11;
}

.nav-toggle span {
  color: #4c4c4c;
  color: rgba(0, 0, 0, 0.7);
  padding: 5px;
  font-size: 1.875em;
}

.no-touch .nav-toggle span:hover { color: black; }

.nav-toggle span.fa-times { color: #fff; }

.nav-toggle span.fa-times:hover { color: #fff; }

.nav-toggle.show-nav {
  top: 12px;
  right: 12px;
}

6. Include jQuery library at the bottom of the web page.

<script src="//code.jquery.com/jquery-1.11.3.min.js"></script> 

7. The core JavaScript to enable the off-canvas menu.

var wrapper    = $("#site-wrapper"),
    menu       = $(".menu"),
    menuLinks  = $(".menu ul li a"),
    toggle     = $(".nav-toggle"),
    toggleIcon = $(".nav-toggle span");

function toggleThatNav() {
  if (menu.hasClass("show-nav")) {
    if (!Modernizr.csstransforms) {
      menu.removeClass("show-nav");
      toggle.removeClass("show-nav");
      menu.animate({
        right: "-=300"
      }, 500);
      toggle.animate({
        right: "-=300"
      }, 500);
    } else {
      menu.removeClass("show-nav");
      toggle.removeClass("show-nav");
    }
    
  } else {
    if (!Modernizr.csstransforms) {
      menu.addClass("show-nav");
      toggle.addClass("show-nav");
      menu.css("right", "0px");
      toggle.css("right", "330px");
    } else {
      menu.addClass("show-nav");
      toggle.addClass("show-nav");
    } 
  }
}

function changeToggleClass() {
  toggleIcon.toggleClass("fa-times");
  toggleIcon.toggleClass("fa-bars");
}

$(function() {
  toggle.on("click", function(e) {
    e.stopPropagation();
    e.preventDefault();
    toggleThatNav();
    changeToggleClass();
  });

    // Keyboard Esc event support
  $(document).keyup(function(e) {
    if (e.keyCode == 27) {
      if (menu.hasClass("show-nav")) {
        if (!Modernizr.csstransforms) {
          menu.removeClass("show-nav");
          toggle.removeClass("show-nav");
          menu.css("right", "-300px");
          toggle.css("right", "30px");
          changeToggleClass();
        } else {
          menu.removeClass("show-nav");
          toggle.removeClass("show-nav");
          changeToggleClass();
        }
      }
    } 
  });
});

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