Cssfile 

.copy {
       position:relative;
       margin-bottom=5px;
       margin-left: auto;
       margin-right: auto;
}


phpfile

<div class="copy" >
<p style="color:#171717; "><img src="/bilder/copyleft.gif" alt="copyleft" border="0">Copyleft 2006 <a href="http://creativecommons.org/licenses/by-nc-sa/2.5/" target="_blank">Lizenz</p>
</div>