File: //usr/local/cwpsrv/var/services/roundcube_03-08-2021.bak/public_html/skins/classic/watermark.html
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title></title>
<!--[if IE]>
<style type="text/css">
body { width: expression((parseInt(document.documentElement.clientWidth)-20)+'px'); }
</style>
<![endif]-->
</head>
<body style="background-color:#F2F2F2;">
<div style="margin:20px auto; text-align:center">
<img src="images/watermark.gif" width="260" height="228" alt="" />
</div>
</body>
</html>