Fancy CSS navigation

Rough CSS reproduction of the navigation found at http://beta.rallyinteractive.com/

by Jens Grochtdreis

HTML

<nav class="nav">
    <h1>Fancy CSS navigation<h1>
    <a class="nav-item nav-prev" href="#non">
        <span class="icon">&lt;</span>
        <span class="text">About</span>
    </a>
    <a class="nav-item nav-next" href="#non">
        <span class="text">Contact</span>
        <span class="icon">&gt;</span>
    </a>
</nav>

CSS

body {
    margin: 0;
    background: #fff;
}

.nav {
    position: relative;
    width: 800px;
    padding: 0 60px;
    margin: 20px auto;
    text-align: center;
    font-family: arial, sans-serif;
}

.nav h1 {
    font-size: 36px;
    font-weight: bold;
    line-height: 60px;   
}


/* =============================================================================
   Nav items
   ========================================================================== */

.nav-item {
    position: absolute;
    top: 0;
    width: 60px;
    text-decoration: none;
}

.nav-prev {
    left: 0;
    padding-left: 70px; 
}

.nav-next {
    right: 0;
    padding-right: 70px;
}


/* =============================================================================
   Nav text
   ========================================================================== */

.nav-item .text {
    position: absolute;
    z-index: 1;
    font-size: 24px;
    font-weight: bold;
    line-height: 60px;
    color: transparent;
    -webkit-transition: all 0.3s ease-in-out;
    -moz-transition: all 0.3s ease-in-out;
    -o-transition: all 0.3s ease-in-out;
    transition: all 0.3s ease-in-out;
}

.nav-item:hover .text,
.nav-item:focus .text,
.nav-item:active .text {
    color: #222;
    -webkit-transition-delay: 0.2s;
    -moz-transition-delay: 0.2s;
    -o-transition-delay: 0.2s;
    transition-delay: 0.2s;
}

/*
 * Previous
 */

.nav-prev .text {
    left: 0;
}

.nav-prev:hover .text,
.nav-prev:focus .text,
.nav-prev:active .text {
    left: 70px;
}

/*
 * Next
 */

.nav-next .text {
    right: 0;
}

.nav-next:hover .text,
.nav-next:focus .text,
.nav-next:active .text {
    right: 70px;   
}


/* =============================================================================
   Nav icons
   ========================================================================== */

.nav-item .icon {
    position: absolute;
    z-index: 2;
    top: 0;
    display: block;
    overflow: hidden;
    text-indent: -999em;
   ...

JavaScript

/*

A rough CSS reproduction of the navigation found at http://beta.rallyinteractive.com/

*/