Edit in JSFiddle

body {
    font-family: 'helvetica neue', helvetica, arial, sans-serif;
    padding: 10px;
}

h1 {
    font-size: 2em;
    margin: .5em 0 0 0 0;
}

ul {
    margin-top: 1em;
    border: 1px solid #666;
}
ul li {
    border: 0;
    border-top: 1px solid #EEE;
    border-bottom: 1px solid #666;
    border-right: 1px solid #EEE;
    border-left: 0;
}
ul li a {
    padding: 10px 15px;
    display: block;
    text-decoration: none;
    color: #FFF;
    background: #999;
    text-shadow: 1px 1px 1px #000;
}
ul li a:hover {
    background: #CCC;
    color: #000;
    text-shadow: 1px 1px 1px #FFF;
}