<div class="foot-r">
     <div class="soc-box">
      <a href="http://vk.com/" class="soc-vk" target="_blank"></a>
      <a href="https://www.facebook.com/" class="soc-fc" target="_blank"></a>
      <a href="https://twitter.com/" class="soc-tw" target="_blank"></a>
      <a href="http://www.odnoklassniki.ru/" class="soc-od" target="_blank"></a>
     </div>
    </div>

.foot-r {float:right;width:30%;text-align:right;}
.soc-box a {display:inline-block;width:38px;height:38px;background:url(/.s/t/2011/soc.jpg);-moz-opacity:.8;opacity:.8;filter:progid:DXImageTransform.Microsoft.Alpha(opacity=80);}
.soc-box a:hover {-moz-opacity:1;opacity:1;filter:progid:DXImageTransform.Microsoft.Alpha(opacity=100);}
.soc-box a.soc-vk {background-position:0 0;}
.soc-box a.soc-fc {background-position:0 -38px;}
.soc-box a.soc-tw {background-position:0 -76px;}
.soc-box a.soc-od {background-position:0 -114px;}