centrovanie na stred

.obrazok{
height: auto; width: 624px; display: inline; float: left; margin: 0px auto; padding: 0px auto; background-color: #333333; align: center;
border: 1px solid black
}

.obrazok_poz {
height: 102px; width: 84px; float: left; margin: 0px; padding: 2px; background-color: white; align: center;
border: 1px solid black
}

echo "<div class=\"obrazok\">";   
echo "
<span class=\"obrazok_poz\">
<img src=\"./obrazok/obrazok.jpg\" width=\"80px\" height=\"98px\" align=\"center\" >
</span>
";
echo "</div>"