This is another menu which is hidden behind the page. When one needs it, he can loads it just by clicking on the button. The menu slides in and when it is not needed, it can be hided again by pressing the button again. Enjoy!

HTML
<!-- this script got from www.devanswer.com -->
<nav id="slide-menu"> <ul> <li class="timeline">Timeline</li> <li class="events">Events</li> <li class="calendar">Calendar</li> <li class="sep settings">Settings</li> <li class="logout">Logout</li> </ul> </nav> <div id="content"> <div class="menu-trigger"></div> <h1>Stylish off-Screen Menu</h1> <p>Here's an easy way to create a stylish, side sliding menu.</p><a style="font-size: 8pt; text-decoration: none" target="_blank" href="http://www.devanswer.com">Developer Code</a>
CSS
@import url(https://fonts.googleapis.com/css?family=Oxygen:400,700);
/* 
  Fonts
*/
@font-face {
  font-family: 'ico';
  src: 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format("truetype");
}
/*
  Globals
*/
body {
  margin: 0;
  background: #556270;
  color: #353d46;
  font: 18px/27px 'Oxygen', sans-serif;
  overflow: hidden;
}

h1, h2, h3 {
  color: #FF6B6B;
  margin: 0 0 27px;
}

/*
  Menu
*/
nav#slide-menu {
  position: fixed;
  top: 0;
  left: -100px;
  bottom: 0;
  display: block;
  float: left;
  width: 100%;
  max-width: 284px;
  height: 100%;
  -moz-transition: all 300ms;
  -webkit-transition: all 300ms;
  transition: all 300ms;
}
nav#slide-menu > ul {
  display: block;
  margin: 40px;
  padding: 0;
  list-style: none;
  opacity: 0.5;
  -moz-transition: all 300ms;
  -webkit-transition: all 300ms;
  transition: all 300ms;
}
nav#slide-menu > ul li {
  color: #dfe5eb;
  padding: 6px 0;
  cursor: pointer;
}
nav#slide-menu > ul li:hover {
  color: #59e9df;
}
nav#slide-menu > ul li:before {
  font-family: "ico";
  font-style: normal;
  font-weight: normal;
  speak: none;
  display: inline-block;
  text-decoration: inherit;
  width: 1em;
  color: #59e9df;
  margin-right: 12px;
  text-align: center;
  font-variant: normal;
  font-size: 0.75em;
  text-transform: none;
  line-height: 1em;
}
nav#slide-menu > ul li.sep {
  margin-top: 7px;
  padding-top: 14px;
  border-top: 1px solid #6b7b8d;
}
nav#slide-menu > ul li.timeline:before {
  content: '\e805';
}
nav#slide-menu > ul li.events:before {
  content: '\e802';
}
nav#slide-menu > ul li.calendar:before {
  content: '\e800';
}
nav#slide-menu > ul li.settings:before {
  content: '\e803';
}
nav#slide-menu > ul li.logout:before {
  content: '\e804';
}

body.menu-active nav#slide-menu {
  left: 0px;
}

body.menu-active nav#slide-menu ul {
  left: 0px;
  opacity: 1;
}

/*
  Content
*/
div#content {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  padding: 60px;
  overflow: scroll;
  background: #fcfeff;
  border-radius: 0;
  -moz-box-sizing: border-box;
  -webkit-box-sizing: border-box;
  box-sizing: border-box;
  -moz-box-shadow: -3px 0 6px #4a5562;
  -webkit-box-shadow: -3px 0 6px #4a5562;
  box-shadow: -3px 0 6px #4a5562;
  -moz-transition: all 300ms;
  -webkit-transition: all 300ms;
  transition: all 300ms;
}
div#content div.menu-trigger {
  position: fixed;
  top: 10px;
  left: 10px;
  width: 36px;
  height: 36px;
  background: #dfe5eb;
  cursor: pointer;
  border-radius: 5px;
  -moz-transition: all 300ms;
  -webkit-transition: all 300ms;
  transition: all 300ms;
}
div#content div.menu-trigger:before {
  content: '\e801';
  display: inline-block;
  width: 36px;
  height: 36px;
  color: black;
  font-family: "ico";
  font-style: normal;
  font-size: 1.2em;
  font-weight: normal;
  font-variant: normal;
  text-align: center;
  text-transform: none;
  line-height: 36px;
}
div#content div.menu-trigger:hover {
  background: #556270;
}
div#content div.menu-trigger:hover:before {
  color: #fcfeff;
}

body.menu-active div#content {
  left: 284px;
  border-radius: 7px 0 0 7px;
}

body.menu-active div#content .menu-trigger {
  left: 294px;
}
Javascript
(function () {
  var $body = document.body,
  $menu_trigger = $body.getElementsByClassName('menu-trigger')[0];

  if (typeof $menu_trigger !== 'undefined') {
    $menu_trigger.addEventListener('click', function () {
      $body.className = $body.className == 'menu-active' ? '' : 'menu-active';
    });
  }

}).call(this);