<div id="site-wrapper">
    <nav class="menu" role="navigation">
      <ul>
        <li><a href="">Home</a></li>
        <li><a href="#about">About</a></li>
        <li><a href="#gallery">Gallery</a></li>
        <li><a href="#contact">Contacts</a></li>
      </ul>
      <p>&#169; 2016 <a href="https://twitter.com/RiccardoZanutta" target="_blank">Riccardo Zanutta</a>, Front-end-Developer</p>
    </nav>
    <a href="#" class="nav-toggle"><span class="fa fa-bars"></span></a>

    <main role="main">
      <section id="about">
        <h1>Cool Off-Canvas Navigation</h1>
        <ul>
        	<li>CSS3 Transitions & Transform;</li>
        	<li>Modernizr Fallback for IE8 </li>
          <li>Keyboard Support (Press Esc)</li>
        	<li>Cool Hover effect :) </li>
        </ul>
      </section><!-- /#about -->
    </main>
  </div><!-- /#site-wrapper -->
@import "bourbon";

// Main Vars

//Primary colors

$gray           : rgb(146,146,146);
$dirty-white    : rgb(247,247,247);
$dove-gray      : rgb(110,110,110);
$black          : rgb(0, 0, 0);
$white          : rgb(255,255,255);
$tangerine      : #FA3251;
$charlotte      : rgb(198,232,246);
$silver         : rgb(204,204,204);

// Base vars

$body-bg          : linear-gradient(to bottom, rgba(246,46,36,1) 0%, rgba(255,54,121,1) 100%);
$text-color       : rgba(255,255,255, 0.8);
$link-color       : $tangerine;

// Navbar colors.

$nav-bg         : #333;
$nav-links-color: rgba(255, 255, 255, 0.7);

// Helper mixins

// Opacity with fallback for IE8
@mixin opacity($opacity) {
  opacity: $opacity;
  $opacity-ie: $opacity * 100;
  filter: alpha(opacity=$opacity-ie); //IE8
}

// RGBA fallback
@mixin rgba($property, $background: white, $opacity: 0.5, $mix: white) {
  #{$property}: mix($background, $mix, $opacity * 100%);
  #{$property}: rgba($background, $opacity);
}

// General Styles to make Everything ok.

@import url("https://fonts.googleapis.com/css?family=Lato");

* {
  box-sizing: border-box;
}

html {
  background: $body-bg;
  font-size: 16px;
  line-height: 1.5;
  font-family: 'Lato', sans-serif;
  color: $text-color;
  overflow: hidden;
}

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

#site-wrapper {
  position: relative;
  width: 100%;
  height: 100%;
  padding-left: 40px;
}

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;
}

/* Navbar Menu Component */

.menu {
  width: 300px;
  height: 100%;
  background: $nav-bg;
  position: fixed;
  top: 0;
  right: -300px;
  backface-visibility: hidden;
  overflow: hidden;
  transform: translateX(0);
  transform: translateX(0) translateZ(0);
  transform: translate3d(0, 0, 0);
  transition: all 0.3s cubic-bezier(0.32,1.25,0.375,1.15);
  z-index: 10;
  &.show-nav {
    transform: translateX(-300px);
    transform: translateX(-300px) translateZ(0);
    transform: translate3d(-300px, 0, 0);
  }
  ul {
    margin: 0;
    padding: 0;
    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;
      &:first-child {
        margin-top: 20px;
        border: 0;
        box-shadow: none;
      }
      a {
        position: relative;
        font-weight: 300;
        padding: 8px 10px;
        color: $nav-links-color;
        color: rgb(255, 255, 255);
        text-decoration: none;
        text-transform: uppercase;
        transition: all 0.25s ease-in-out;
        &:after {
          content: "";
          position: absolute;
          bottom: 0;
          left: 0;
          width: 100%;
          height: 1px;
          background-color: $tangerine;
          visibility: hidden;
          transform: scaleX(0);
          transition: all 0.3s cubic-bezier(0.32,1.25,0.375,1.15);
        }
        .no-touch &:hover {
          //color: $tangerine;
          &:after {
            transform: scale(1);
            visibility: visible;
          }
        }
      }
    }
  }

  p {
    color: $nav-links-color;
    position: absolute;
    top: 86%;
    left: 20px;
    font-size: em(14px);
    text-align: center;
    a {
      color: $tangerine;
      text-decoration: none;
      transition: all 0.3s ease;
      &:hover {
        color: $tangerine;
        text-decoration: underline;
      }
    }
  }
}

.nav-toggle {
  position: fixed;
  top: 30px;
  right: 30px;
  backface-visibility: hidden;
  transform: translateX(0);
  transform: translateX(0) translateZ(0);
  transform: translate3d(0, 0, 0);
  transition: all 0.4s cubic-bezier(0.32,1.25,0.375,1.15);
  z-index: 11;
  span {
    color: rgba(255, 255, 255, 0.8);
    padding: 5px;
    font-size: em(30px);
    .no-touch &:hover {
      color: white;
    }
    &.fa-times {
      color: #fff;
      &:hover {
        color: #fff;
      }
    }
  }
  &.show-nav {
    top: 12px;
    right: 12px;
  }
}
View Compiled
// Vars

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();
        }
      }
    } 
  });
});

alsolike(
  "NNzGVd", "Search input context animation",
  "aOQddB", "Open & Close Animation",
  "wBOder", "Subtle Icons hover effect"
);

 /* Thanks to:
  @fbrz for the "You might also like" plugin
*/

External CSS

  1. https://cdnjs.cloudflare.com/ajax/libs/font-awesome/4.2.0/css/font-awesome.min.css

External JavaScript

  1. //cdnjs.cloudflare.com/ajax/libs/jquery/2.1.3/jquery.min.js
  2. https://codepen.io/fbrz/pen/9a3e4ee2ef6dfd479ad33a2c85146fc1.js