<html>
<head lang="en">
    <meta charset="UTF-8">
    <title></title>


</head>
<body>

<div id="main-wrapper" class="wrapper">
    <nav id="nav-menu">

    <div class="menu-icon-container">
        <div class="menu-icon">
            <span class="bar1"></span>
            <span class="bar2"></span>
            <span class="bar3"></span>
        </div>
    </div>

    <div class="menu-list-container">
        <ul>
            <li>HOME</li>
            <li>ABOUT</li>
            <li>CONTACT</li>
        </ul>
    </div>
</nav>

    <div class="main-container">
    <div class="content">
        <div class="text">DEMO</div>
    </div>
</div>
</div>


</body>
</html>
html, body, div, span, applet, object, iframe,
h1, h2, h3, h4, h5, h6, p, blockquote, pre,
a, abbr, acronym, address, big, cite, code,
del, dfn, em, img, ins, kbd, q, s, samp,
small, strike, strong, sub, sup, tt, var,
b, u, i, center,
dl, dt, dd, ol, ul, li,
fieldset, form, label, legend,
table, caption, tbody, tfoot, thead, tr, th, td,
article, aside, canvas, details, embed,
figure, figcaption, footer, header, hgroup,
menu, nav, output, ruby, section, summary,
time, mark, audio, video {
  margin: 0;
  padding: 0;
  border: 0;
  font: inherit;
  font-size: 100%;
  vertical-align: baseline;
}

html {
  line-height: 1;
}

ol, ul {
  list-style: none;
}

table {
  border-collapse: collapse;
  border-spacing: 0;
}

caption, th, td {
  text-align: left;
  font-weight: normal;
  vertical-align: middle;
}

q, blockquote {
  quotes: none;
}
q:before, q:after, blockquote:before, blockquote:after {
  content: "";
  content: none;
}

a img {
  border: none;
}

article, aside, details, figcaption, figure, footer, header, hgroup, menu, nav, section, summary {
  display: block;
}
html, body {
  width: 100%;
  height: 100%;
  font-family: "HelveticaNeue-Light", "Helvetica Neue Light", "Helvetica Neue", Helvetica, Arial, "Lucida Grande", sans-serif;
  font-weight: 300;
}

.wrapper {
  width: 100%;
  height: 100%;
  overflow: hidden;
  -webkit-perspective: 1100px;
  -moz-perspective: 1100px;
  -ms-perspective: 1100px;
  -o-perspective: 1100px;
  perspective: 1100px;
}
.wrapper.active nav {
  background: rgba(255, 255, 255, 0.6);
}
.wrapper.active nav .menu-list-container {
  -webkit-transform: translate(0, 0);
  -moz-transform: translate(0, 0);
  -ms-transform: translate(0, 0);
  -o-transform: translate(0, 0);
  transform: translate(0, 0);
  opacity: 1;
}
.wrapper.active .main-container {
  -webkit-transform:  rotateY(45deg) translateX(-50%) translateZ(-300px);
  -moz-transform:  rotateY(45deg) translateX(-50%) translateZ(-300px);
  -ms-transform:  rotateY(45deg) translateX(-50%) translateZ(-300px);
  -o-transform:  rotateY(45deg) translateX(-50%) translateZ(-300px);
  transform:  rotateY(45deg) translateX(-50%) translateZ(-300px);
}

.main-container {
  width: 100%;
  height: 100%;
  background: url("http://placeimg.com/640/480/any") no-repeat center center fixed;
  -moz-background-size: cover;
  -webkit-background-size: cover;
  -o-background-size: cover;
  background-size: cover;
  -webkit-transition: -webkit-transform 0.4s;
  -moz-transition: -moz-transform 0.4s;
  -o-transition: -o-transform 0.4s;
  transition: transform 0.4s;
  -webkit-transform-origin: 50% 50%;
  -moz-transform-origin: 50% 50%;
  -ms-transform-origin: 50% 50%;
  -o-transform-origin: 50% 50%;
  transform-origin: 50% 50%;
  -webkit-transform-style: preserve-3d;
  transform-style: preserve-3d;
  -webkit-transform:  rotateY(0deg) translateX(0) translateZ(0);
  -moz-transform:  rotateY(0deg) translateX(0) translateZ(0);
  -ms-transform:  rotateY(0deg) translateX(0) translateZ(0);
  -o-transform:  rotateY(0deg) translateX(0) translateZ(0);
  transform:  rotateY(0deg) translateX(0) translateZ(0);
}
.main-container .content {
  position: relative;
  width: 100%;
  height: 100%;
}
.main-container .content .text {
  font-size: 32px;
  letter-spacing: 3px;
  color: #ffffff;
  position: absolute;
  top: 50%;
  left: 50%;
  -webkit-transform: translate(-50%, -50%);
  -moz-transform: translate(-50%, -50%);
  -ms-transform: translate(-50%, -50%);
  -o-transform: translate(-50%, -50%);
  transform: translate(-50%, -50%);
}

nav {
  color: #333;
  position: absolute;
  top: 0;
  width: 100%;
  height: 100%;
  right: 0;
  z-index: 1000;
  overflow: hidden;
  -webkit-transform: translate(0, 0);
  -moz-transform: translate(0, 0);
  -ms-transform: translate(0, 0);
  -o-transform: translate(0, 0);
  transform: translate(0, 0);
  -webkit-transition: all 0.4s ease-in;
  -moz-transition: all 0.4s ease-in;
  -o-transition: all 0.4s ease-in;
  transition: all 0.4s ease-in;
}
nav .menu-icon-container {
  position: absolute;
  top: 20px;
  right: 10%;
  z-index: 9999;
}
nav .menu-list-container {
  position: absolute;
  top: 50%;
  width: 100%;
  -webkit-transform: translate(100%, 0);
  -moz-transform: translate(100%, 0);
  -ms-transform: translate(100%, 0);
  -o-transform: translate(100%, 0);
  transform: translate(100%, 0);
  opacity: 0;
  -webkit-transition: -webkit-transform 0.6s, opacity 1s;
  -moz-transition: -moz-transform 0.6s, opacity 1s;
  -o-transition: -o-transform 0.6s, opacity 1s;
  transition: transform 0.6s, opacity 1s;
}
nav .menu-list-container ul {
  -webkit-transform: translate(0, -50%);
  -moz-transform: translate(0, -50%);
  -ms-transform: translate(0, -50%);
  -o-transform: translate(0, -50%);
  transform: translate(0, -50%);
  width: 100%;
}
nav .menu-list-container ul li {
  width: 100%;
  text-align: center;
  font-size: 24px;
  margin-bottom: 20px;
}
.demo {
  margin: auto;
  margin-top: 60px;
  padding: 75px 0 10px;
  width: 22px;
}

.menu-icon {
  display: block;
  float: left;
  cursor: pointer;
  -webkit-transition: all 0.2s ease-in;
  -moz-transition: all 0.2s ease-in;
  -o-transition: all 0.2s ease-in;
  transition: all 0.2s ease-in;
}
.menu-icon span {
  display: block;
  width: 22px;
  height: 4px;
  background: #333333;
  margin-bottom: 2px;
  border-radius: 1px;
  -webkit-transition: all 0.4s ease-out;
  -moz-transition: all 0.4s ease-out;
  -o-transition: all 0.4s ease-out;
  transition: all 0.4s ease-out;
}
.menu-icon span.bar1 {
  margin-top: 2px;
}
.menu-icon:hover span {
  margin-bottom: 4px;
}
.menu-icon:hover span.bar1 {
  margin-top: 0px;
}
.menu-icon.active {
  -webkit-transform: rotate(-45deg);
  -moz-transform: rotate(-45deg);
  -ms-transform: rotate(-45deg);
  -o-transform: rotate(-45deg);
  transform: rotate(-45deg);
}
.menu-icon.active:hover span {
  margin-top: 2px;
  margin-bottom: 2px;
}
.menu-icon.active .bar1 {
  -webkit-transform: rotate(0deg) translateY(6px);
  -moz-transform: rotate(0deg) translateY(6px);
  -ms-transform: rotate(0deg) translateY(6px);
  -o-transform: rotate(0deg) translateY(6px);
  transform: rotate(0deg) translateY(6px);
}
.menu-icon.active .bar2 {
  opacity: 0;
}
.menu-icon.active .bar3 {
  -webkit-transform: rotate(-90deg) translateX(5px);
  -moz-transform: rotate(-90deg) translateX(5px);
  -ms-transform: rotate(-90deg) translateX(5px);
  -o-transform: rotate(-90deg) translateX(5px);
  transform: rotate(-90deg) translateX(5px);
}

(function(){
    var $mainWrapper = $("#main-wrapper");

    $('.menu-icon').click(function(){
        $(this).toggleClass('active');
        $mainWrapper.toggleClass('active');
    });


})();

External CSS

This Pen doesn't use any external CSS resources.

External JavaScript

  1. //cdnjs.cloudflare.com/ajax/libs/jquery/2.1.3/jquery.min.js