html example

<div id="footer">
    <ul>
		<li><a href="http://www.gfy.com/feed/" class="feed" title="Subscribe to the GFY feed">Feed</a></li>	
    </ul>
</div>

css for this

#footer ul li a {
    display: block;
    float: left;
    padding: 3px 15px 3px 12px;
    color: #999;
    text-decoration: none;
}

#footer ul li a.feed {
    background: url(images/icon_feed.gif) 0 60% no-repeat;
}

#footer ul li a:hover {
    color: #4E677A;
    text-decoration: underline;
}