Graphite Navigation

<style>
/*
 * Copyright (c) 2012-2013 Thibaut Courouble
 * http://www.foulscode.blogspot.gr
 * Licensed under the MIT License
 *
 * Sass/SCSS source: http://goo.gl/JcvzX
 * PSD by Benjamin Nathan: http://goo.gl/GxcsV
 */
body {
  font: 13px/20px "Lucida Grande", Tahoma, Verdana, sans-serif;
  color: #404040;
  background: #555f6c;
}
.container {
  margin: 80px auto;
  width: 500px;
  text-align: center;
}
.nav-item {
  padding: 3px;
  background: rgba(0, 0, 0, 0.01);
  border-radius: 4px;
  display: inline-block;
  vertical-align: baseline;
  zoom: 1;
  *display: inline;
  *vertical-align: auto;
  background-image: -webkit-linear-gradient(top, rgba(0, 0, 0, 0.01), rgba(255, 255, 255, 0.12));
  background-image: -moz-linear-gradient(top, rgba(0, 0, 0, 0.01), rgba(255, 255, 255, 0.12));
  background-image: -o-linear-gradient(top, rgba(0, 0, 0, 0.01), rgba(255, 255, 255, 0.12));
  background-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.01), rgba(255, 255, 255, 0.12));
  -webkit-box-shadow: inset 0 1px 2px rgba(0, 0, 0, 0.3), inset 0 -1px rgba(255, 255, 255, 0.15);
  box-shadow: inset 0 1px 2px rgba(0, 0, 0, 0.3), inset 0 -1px rgba(255, 255, 255, 0.15);
}
.nav-link {
  display: block;
  line-height: 27px;
  width: 100px;
  font-size: 12px;
  color: white;
  text-decoration: none;
  text-shadow: 0 1px 1px rgba(0, 0, 0, 0.5);
  background: #7e929b;
  border: 1px solid;
  border-color: #c2ccd1 #9cacb2 #91a2aa;
  border-color: #c2ccd1 rgba(255, 255, 255, 0.1) #91a2aa;
  border-radius: 3px;
  background-image: -webkit-linear-gradient(top, #b9c6cc 0%, #8ea1aa 50%, #768b94 51%, #7c9099 75%, #7e929b 100%);
  background-image: -moz-linear-gradient(top, #b9c6cc 0%, #8ea1aa 50%, #768b94 51%, #7c9099 75%, #7e929b 100%);
  background-image: -o-linear-gradient(top, #b9c6cc 0%, #8ea1aa 50%, #768b94 51%, #7c9099 75%, #7e929b 100%);
  background-image: linear-gradient(to bottom, #b9c6cc 0%, #8ea1aa 50%, #768b94 51%, #7c9099 75%, #7e929b 100%);
}
.nav-link:hover {
  background: #a8bdc7;
  border-color: #e3eaed #d3dee3 #cedadf;
  background-image: -webkit-linear-gradient(top, #cfdae0 0%, #b5c7cf 50%, #a6bac5 51%, #aec1ca 100%);
  background-image: -moz-linear-gradient(top, #cfdae0 0%, #b5c7cf 50%, #a6bac5 51%, #aec1ca 100%);
  background-image: -o-linear-gradient(top, #cfdae0 0%, #b5c7cf 50%, #a6bac5 51%, #aec1ca 100%);
  background-image: linear-gradient(to bottom, #cfdae0 0%, #b5c7cf 50%, #a6bac5 51%, #aec1ca 100%);
}
.nav-link:active {
  padding: 1px;
  background: #8c9da5;
  border: 0;
  background-image: -webkit-linear-gradient(top, #5f7681 0%, #8c9da5 45%, #9dabb1 100%);
  background-image: -moz-linear-gradient(top, #5f7681 0%, #8c9da5 45%, #9dabb1 100%);
  background-image: -o-linear-gradient(top, #5f7681 0%, #8c9da5 45%, #9dabb1 100%);
  background-image: linear-gradient(to bottom, #5f7681 0%, #8c9da5 45%, #9dabb1 100%);
}
</style>
<nav class="container">
  <ul>
    <li class="nav-item"><a href="URL" class="nav-link">Home</a></li>    <li class="nav-item"><a href="URL" class="nav-link">Work</a></li>    <li class="nav-item"><a href="URL" class="nav-link">About</a></li>    <li class="nav-item"><a href="URL" class="nav-link">Contact</a></li>  </ul>
</nav>