Multi-Level Sliding Sidebar Navigation with jQuery and CSS3

A fixed sidebar navigation system which allows you to reveal a full multi-level navigation menu by clicking on the toggle icon. Written in jQuery/CSS/CSS3 and animated with CSS3 transitions.

How to use it:

1. Include the Font Awesome 4 for navigation icons.

<link href="//netdna.bootstrapcdn.com/font-awesome/4.2.0/css/font-awesome.min.css" rel="stylesheet">

2. Create a sidebar navigation menu with a toggle button and your logo.

<div class="page-container">
  <div class="content">
    ... MAIN CONTENT GOES HERE ... 
  </div>
  <div class="sidebar-menu">
    <header class="logo"> <a href="#" class="sidebar-icon"> <span class="fa fa-bars"></span> </a> <a href="#"> <span id="logo" class="fa fa-html5 fa-5x"></span> 
      <!--<img id="logo" src="" alt="Logo"/>--> 
      </a> </header>
    <div style="border-top:1px solid rgba(69, 74, 84, 0.7)"></div>
    <div class="menu">
      <ul id="menu" >
        <li id="menu-home" ><a href="#"><i class="fa fa-home"></i><span>Home</span></a></li>
        <li id="menu-comunicacao" ><a href="#"><i class="fa fa-anchor"></i><span>Category</span><span class="fa fa-angle-double-right" style="float: right"></span></a>
          <ul id="menu-comunicacao-sub" >
            <li id="menu-mensagens" style="width: 120px" ><a href="#">Item 1<i class="fa fa-angle-right" style="float: right; margin-right: -8px; margin-top: 2px;"></i></a>
              <ul id="menu-mensagens-sub" >
                <li id="menu-mensagens-enviadas" ><a href="#">Item 1.1</a></li>
                <li id="menu-mensagens-recebidas" ><a href="#">Item 1.2</a></li>
                <li id="menu-mensagens-nova" ><a href="#">Item 1.3</a></li>
              </ul>
            </li>
            <li id="menu-arquivos" ><a href="#">Item 2</a></li>
          </ul>
        </li>
        <li id="menu-academico" ><a href="#"><i class="fa fa-envelope"></i><span>About</span><span class="fa fa-angle-right" style="float: right"></span></a>
          <ul id="menu-academico-sub" >
            <li id="menu-academico-avaliacoes" ><a href="#">Contact us</a></li>
            <li id="menu-academico-boletim" ><a href="#">About us</a></li>
          </ul>
        </li>
        <li><a href="#"><i class="fa fa-share-alt"></i><span>Share</span><span class="fa fa-angle-right" style="float: right"></span></a>
          <ul>
            <li><a href="#"><i class="fa fa-facebook"></i> Facebook</a></li>
            <li><a href="#"><i class="fa fa-twitter"></i> Twitter</a></li>
            <li><a href="#"><i class="fa fa-pinterest"></i> Pinterest</a></li>
          </ul>
        </li>
        <li><a href="#"><i class="fa fa-history"></i><span>Blog</span></a></li>
        <li><a href="#"><i class="fa fa-gears"></i><span>Settings</span></a></li>
      </ul>
    </div>
  </div>
</div>

3. The core CSS/CSS3 styles for the sidebar navigation. Add the following CSS snippets into your CSS file.

html,
body {
  height: 100%;
  background: #eeeeee;
}

a,
a:hover,
a:active { text-decoration: none; }

a {
  color: #008DE7;
  font-style: italic;
  font-weight: 700;
}

a:hover { transition: all 200ms ease-in-out; }

.page-container {
  min-width: 1260px;
  position: relative;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  width: 100%;
  height: 100%;
  margin: 0px auto;
}

.page-container.sidebar-collapsed {
  padding-right: 65px;
  transition: all 100ms linear;
  transition-delay: 300ms;
}

.page-container.sidebar-collapsed-back {
  padding-right: 280px;
  transition: all 100ms linear;
}

.page-container.sidebar-collapsed .sidebar-menu {
  width: 65px;
  transition: all 100ms ease-in-out;
  transition-delay: 300ms;
}

.page-container.sidebar-collapsed-back .sidebar-menu {
  width: 280px;
  transition: all 100ms ease-in-out;
}

.page-container.sidebar-collapsed .sidebar-icon {
  transform: rotate(90deg);
  transition: all 300ms ease-in-out;
}

.page-container.sidebar-collapsed-back .sidebar-icon {
  transform: rotate(0deg);
  transition: all 300ms ease-in-out;
}

.page-container.sidebar-collapsed .logo {
  padding: 21px;
  height: 136px;
  box-sizing: border-box;
  transition: all 100ms ease-in-out;
  transition-delay: 300ms;
}

.page-container.sidebar-collapsed-back .logo {
  width: 100%;
  padding: 21px;
  height: 136px;
  box-sizing: border-box;
  transition: all 100ms ease-in-out;
}

.page-container.sidebar-collapsed #logo {
  opacity: 0;
  transition: all 200ms ease-in-out;
}

.page-container.sidebar-collapsed-back #logo {
  opacity: 1;
  transition: all 200ms ease-in-out;
  transition-delay: 300ms;
}

.page-container.sidebar-collapsed #menu span {
  opacity: 0;
  transition: all 50ms linear;
}

.page-container.sidebar-collapsed-back #menu span {
  opacity: 1;
  transition: all 200ms linear;
  transition-delay: 300ms;
}

.sidebar-menu {
  position: fixed;
  float: left;
  width: 280px;
  top: 0;
  right: 0;
  bottom: 0;
  background-color: #303641;
  color: #aaabae;
  font-family: "Segoe UI";
  box-shadow: 0px 0px 10px 0px rgba(0, 0, 0, 0.5);
  z-index: 1;
}

#menu {
  list-style: none;
  margin: 0;
  padding: 0;
  margin-bottom: 20px;
}

#menu li {
  position: relative;
  margin: 0;
  font-size: 12px;
  border-bottom: 1px solid rgba(69, 74, 84, 0.7);
  padding: 0;
}

#menu li ul {
  opacity: 0;
  height: 0px;
}

#menu li a {
  font-style: normal;
  font-weight: 400;
  position: relative;
  display: block;
  padding: 10px 20px;
  color: #aaabae;
  white-space: nowrap;
  z-index: 2;
}

#menu li a:hover {
  color: #ffffff;
  background-color: #333944;
  transition: color 250ms ease-in-out, background-color 250ms ease-in-out;
}

#menu li.active > a {
  background-color: #2b303a;
  color: #ffffff;
}

#menu ul li { background-color: #2b303a; }

#menu ul {
  list-style-type: none;
  margin: 0;
  padding: 0;
}

#menu li ul {
  position: absolute;
  visibility: hidden;
  right: 100%;
  top: -1px;
  background-color: #2b303a;
  box-shadow: 0px 0px 10px 0px rgba(0, 0, 0, 0.5);
  opacity: 0;
  transition: opacity 0.1s linear;
  border-top: 1px solid rgba(69, 74, 84, 0.7);
}

#menu li:hover > ul {
  visibility: visible;
  opacity: 1;
}

#menu li li ul {
  right: 100%;
  visibility: hidden;
  top: -1px;
  opacity: 0;
  transition: opacity 0.1s linear;
}

#menu li li:hover ul {
  visibility: visible;
  opacity: 1;
}

#menu .fa { margin-right: 5px; }

.logo {
  width: 100%;
  padding: 21px;
  box-sizing: border-box;
}

.sidebar-icon {
  position: relative;
  float: right;
  margin-top: 32px;
  border: 1px solid #454a54;
  text-align: center;
  line-height: 1;
  font-size: 18px;
  padding: 6px 8px;
  border-radius: 3px;
  color: #888;
  background-clip: padding-box;
  text-shadow: 4px 4px 6px rgba(0,0,0,0.4);
}

.fa-html5 {
  color: #fff;
  margin-left: 50px;
}

4. Include the necessary JQuery library at the end of the document.

<script src="//code.jquery.com/jquery-2.1.1.min.js"></script> 

5. The JavaScript to enable the sidebar navigation.

var toggle = true;
            
$(".sidebar-icon").click(function() {                
  if (toggle){
    $(".page-container").addClass("sidebar-collapsed").removeClass("sidebar-collapsed-back");
    $("#menu span").css({"position":"absolute"});
  }
  else {
    $(".page-container").removeClass("sidebar-collapsed").addClass("sidebar-collapsed-back");
    setTimeout(function() {
      $("#menu span").css({"position":"relative"});
    }, 400);
  }
                
toggle = !toggle;

});

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