<!-- menu -->
    <nav>
        <ul>
            <li><a href="https://www.google.com/">Google</a></li>
            <li><a href="http://www.amazon.com">Amazon</a></li>
          <li><a href="http://www.zappos.com">Zappos</a></li>
          <li><a href="http://www.threadless.com">Threadless</a></li>
        </ul>
    </nav>
 
    <!-- main article -->
    <article>
 
        <h1>Shopping Menu</h1>
      <picture>
        <source media="(min-width: 40em)" srcset="http://placehold.it/720x405 1x, http://placehold.it/1440x810 2x"/>
        <source srcset="http://placehold.it/405x228 1x, http://placehold.it/810x456 2x"/>
        <img src="http://placehold.it/705x405" alt=""/>
      </picture>
        <p class="lead">Maecenas sed diam eget risus varius blandit sit amet non magna. Integer posuere erat a ante venenatis dapibus posuere velit aliquet.</p>
        <p>Maecenas faucibus mollis interdum. Nullam id dolor id nibh ultricies vehicula ut id elit. Praesent commodo cursus magna, vel scelerisque nisl consectetur et.Cras justo odio, dapibus ac facilisis in, egestas eget quam. Etiam porta sem malesuada magna mollis euismod. Curabitur blandit tempus porttitor. Vivamus sagittis lacus vel augue laoreet rutrum faucibus dolor auctor. Cum sociis natoque penatibus et magnis dis parturient montes, nascetur ridiculus mus. Praesent commodo cursus magna, vel scelerisque nisl consectetur et. Nullam id dolor id nibh ultricies vehicula ut id elit.</p>
 
    </article>

/* Revealing 3D Menu CSS */
body
{
	font-family: sans-serif;
	font-size: 100%;
	padding: 0;
	margin: 0;
	color: #333;
	background-color: #222;
}

/* main page */
article
{
	position: fixed;
	width: 70%;
	left: 0;
	top: 0;
	right: 0;
	bottom: 0;
	padding: 30px 15%;
	background-color: #fff;
	overflow: auto;
	z-index: 0;
	-webkit-transform-origin: 0 50%;
	-moz-transform-origin: 0 50%;
	-ms-transform-origin: 0 50%;
	-o-transform-origin: 0 50%;
	transform-origin: 0 50%;
}


article:after
{
	position: absolute;
	content: ' ';
	left: 100%;
	top: 0;
	right: 0;
	bottom: 0;
/*	background-image: -webkit-linear-gradient(right, rgba(0,0,0,0.2) 0%, transparent 100%);
	background-image: -moz-linear-gradient(right, rgba(0,0,0,0.2) 0%, transparent 100%);
	background-image: -ms-linear-gradient(right, rgba(0,0,0,0.2) 0%, transparent 100%);
	background-image: -o-linear-gradient(right, rgba(0,0,0,0.2) 0%, transparent 100%);
	background-image: linear-gradient(right, rgba(0,0,0,0.2) 0%, transparent 100%);
	pointer-events: none;*/
}

/* navigation */
nav
{
	position: fixed;
	left: -16em;
	top: 0;
	bottom: 0;
	background-color: #bada55;
	border-right: 50px solid #bada55;
	//box-shadow: 4px 0 5px rgba(0,0,0,0.2);
	z-index: 1;
	cursor: pointer;
}

nav:after
{
	position: absolute;
	content: ' ';
	width: 0;
	height: 0;
	right: -70px;
	top: 50%;
	border-width: 15px 10px;
	border-style: solid;
	border-color: transparent transparent transparent #bada55;
}

nav ul
{
	width: 14em;
	list-style-type: none;
	margin: 0;
	padding: 1em;
}

nav a:link, nav a:visited
{
	display: block;
	width: 100%;
	font-weight: bold;
	line-height: 2.5em;
	text-indent: 10px;
	text-decoration: none;
	color: #fff;
	border-radius: 4px;
	outline: 0 none;
}

nav a:hover, nav a:focus
{
	color: #fff;
	background-color: darken(#bada55, 20%);
	text-shadow: 0 0 4px #fff;
	box-shadow: inset 0 2px 2px rgba(0,0,0,0.2);
}

/* hovering */
article, article:after, nav, nav *
{
	-webkit-transition: all 600ms ease;
	-moz-transition: all 600ms ease;
	-ms-transition: all 600ms ease;
	-o-transition: all 600ms ease;
	transition: all 600ms ease;
}

nav:hover
{
	left: 0;
}

nav:hover ~ article
{
	-webkit-transform: translateX(16em) perspective(600px) rotateY(10deg);
	-moz-transform: translateX(16em) perspective(600px) rotateY(10deg);
	-ms-transform: translateX(16em) perspective(600px) rotateY(10deg);
	-o-transform: translateX(16em) perspective(600px) rotateY(10deg);
	transform: translateX(16em) perspective(600px) rotateY(10deg);
}

nav:hover ~ article:after
{
	left: 60%;
}

/* typography */
footer
{
	margin-top: 2em;
	border-top: 1px dotted #999;
}

h1
{
	font-size: 2.5em;
	font-weight: normal;
	margin: 0 0 0.2em 0;
}

p
{
	line-height: 1.3em;
	margin: 0 0 1.5m 0;
}

.lead {
  font-weight:100;
  font-size:21px;
}

picture {
  width:100%;
  height:auto;
  display:block;
}

// Not good for users with mobile phones but intresting.