Css und Php verbinden

body {
 background: #FFFFFF url(bdedfg.jpg) repeat;
 font-family:arial, helvetica, sans-serif;
 font-size:9pt;
 margin:0;
 padding:0;
}

#container {
 width:700px;
 height:auto;
 background:#cccaca;
 padding:10px;
 margin:10px auto 10px auto;
}




#header {
 height: 180px;
 width: 700px;
 background: #FFFFFF url('banner.jpg') bottom left no-repeat;

}



#header p {
 text-align:right;
 padding:50px 10px 10px 10px;
 color:#fff;
 font-size:10pt;
 font-weight:bold;
}





#nav {
 margin:30px 10 0 0;
 
 padding:0 10px 0 10px;
 height:37px;
 width:680px;
 background: top left repeat-x #000000;
 background
}

#nav li {
 list-style:none;
 margin:0;
 padding:0;
 display:inline;
}

#nav li a {
 color:#fff;
 font-weight:bold;
 font-size:12pt;
 text-decoration:none;
 padding:0 10px 4px 10px;
 display:inline;
 margin:0;
 line-height:33px;
 overflow:hidden;
 float: left
}

#nav li a:hover {
 background: top left repeat-x #890404;
}

#content {

 margin-top: 0;
 background: #FFFFFF;
} 

#content h2 {
 font-size:13pt;
 color:#f6502e;
 font-family:georgia, times, serif;
 font-weight:normal;
 margin:0;
 padding:0;
}

#content .post {
 margin-left:5px;
 border-top:1px solid #d9d7d7;
 margin-top:10px;
 padding:10px; 
}


#footer {
 
 color:#890404;
 margin-top:10px;
 padding:10px;
 text-align:center;
 font-size:8pt;
}

<div id="container"> 

 <div id="header"> 
 
 
</div>
 <ul div id="nav">

 <li><a href="index.htm">Home</a></li>
 <li><a href="about.htm">About</a></li>
 <li><a href="http://mikemiller.mi.funpic.de/gallery/" target="_black">Photos</a></li>
 <li><a href="http://www.forum.de" target="_black">Forum</a></li>
 <li><a href="band.htm">Band</a></li>
 <li><a href="formmailer.php">Contact</a></li>
 </ul>
 
 <div id="content">
 <div class="post">
 <h2>A Blog Post</h2>..........

 $res= $db->query($sql);
 while($row=mysql_fetch_assoc($res)) {
 echo "<table width=\"60%\" border=\"0\">";
 echo "<tr>";
 echo "<th nowrap>Author</th>";
 echo "<th nowrap>Date</th>";
 echo "<th nowrap>Titel</th>";
 echo" <th nowrap>Inhalt</th>". "</tr>";
 

 echo "<td nowrap>". $row['Author']."</td>"; 
 echo "<td nowrap>". $row['Date']."</td>";
 echo "<td nowrap>". $row['Titel']."</td>";
 echo "<td nowrap>". $row['Inhalt']."</td>";