.logo {display:block; width:210px; height:100px; BACKGROUND:url(“images/logo.gif”/*tpa=http://aa.com/images/logo.gif*/) no-repeat center center; float:left}
<div class=”block clearfix header_bg”>
<a class=”logo” href=”index.php.htm” tppabs=”http://aa.om/cc/index.php”></a>
</div>