Redes sociales flotantes

<style type="text/css">
ul#social {
    position: fixed;
    margin: 0px;
    padding: 0px;
    top: 10px;
    left: 0px;
    list-style: none;
    z-index:9999;
}
ul#social li {
    width: 100px;
}
ul#social li a {
    display: block;
    margin-left: -2px;
    width: 100px;
    height: 70px;
    background-color:#fff;
    background-repeat:no-repeat;
    background-position:center center;
    border:1px solid #AFAFAF;
    -moz-border-radius:0px 10px 10px 0px;
    -webkit-border-bottom-right-radius: 10px;
    -webkit-border-top-right-radius: 10px;
    -khtml-border-bottom-right-radius: 10px;
    -khtml-border-top-right-radius: 10px;
    -moz-box-shadow: 0px 4px 3px #000;
    -webkit-box-shadow: 0px 4px 3px #000;
}
ul#social .twitter a{
     background:#0F96C6 url(https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhURDc9117SnRG2sPRqO1pSbwtKN8n9cPsuhJbv9GarSjG4XLPAjDPe3qswA2y8ZFOf82v7xJTEMM-z6mEZ4cW8f7wJMitUcEeZqNiKA4opL6HEiHCCRtNeavfZOeoFHj3hK21w0jAJ4fo/s1600/Twitter.png)no-repeat;
background-position:center center;
}
ul#social .googleplus a      {
    background:#D73D27 url(https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiFp5VDgnHyuHjndWu3EuMqYfIfFG3v3EQypkBqWRiOo_ScV9OO2IgpeYRoWmTXZCUDicyOxMw7n9EJVGCBVZ-0Nc5sZNgTCUQEnrkvtYEvc1RAApAEDufFlRuPynsA7hUdFUyoEAZhU3w/s1600/GOOGLE+PLus.png)no-repeat;
background-position:center center;
}
ul#social .facebook a      {
    background:#1A4B97 url(https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhz8zzUkVD3SFoK1-i3rHDw0B9zfVshHwpz3OMAuV5hekSnqMZZuA8OYT9rn6fqsmSkR_5bbLXi8FedApvEbpty-TJy0EoQPAb9SJc4jlIZkmrE8CaNn-P5sFskaM9iC07dZTKzqDgBmac/s1600/Facebook.png)no-repeat;
background-position:center center;
}
ul#social .pinterest a   {
    background:#963336 url(https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEimWvunZ-immFO7JkASx49Q14ywexCrfJmEQDX8J8JDyfxWN-V3F9SXA8OzvXVqkkZhI5kV8fjlC-sNMEYC0l22YZQ0NiIfDgFKWmsrY8yCnMetRIpyK5nxCeLCxEPfmV7665azPmGR-Mc/s1600/Pinterest.png)no-repeat;
background-position:center center;
}
</style>
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js"></script>
<script type='text/javascript'>
$(function () {
    $('#social a').stop().animate({
        'marginLeft': '-85px'
    }, 1000);
    $('#social > li').hover(
        function () {
            $('a', $(this)).stop().animate({
                'marginLeft': '-2px'
            }, 200);
        },
        function () {
            $('a', $(this)).stop().animate({
                'marginLeft': '-85px'
            }, 200);
        }
    );
});
</script>
<ul id='social'>
 <li class='twitter'><a href='URL DE TWITTER' title='Twitter'></a></li>
 <li class='googleplus'><a href='URL DE TU GOOGLE PLUS' title='Google Plus'></a></li>
 <li class='facebook'><a href='URL DE TU FACEBOOK' title='Facebook'></a></li>
 <li class='pinterest'><a href='URL DE TU PINTEREST' title='Pinterest'></a></li>
</ul>


Ejemplo como debe de quedar:

</script>
<ul id='social'>
 <li class='twitter'><a href='http://twitter.com/TeodorusMaximus' title='Twitter'></a></li>
 <li class='googleplus'><a href='http://plus.google.com/u/0/116477218804435165768' title='Google Plus'></a></li>
 <li class='facebook'><a href='http://www.facebook.com/pages/Teodorus-Maximus/549671968430429' title='Facebook'></a></li>