<link rel="stylesheet" type="text/css" href="ust.css" />
<div id="ust">
<div id="logo">
</div>
<div id="menu">
   <ul>
        <li><a href="#">Anasayfa</a></li>
        <li><a href="#">Borç Sorgulama</a></li>
        <li><a href="#">Sitemiz Canlı Bağlantı</a></li>
    </ul>

</div>




</div>

#ust {
margin-left:auto;
margin-right:auto;
width:800px;
/*   alttaki 200  */
height:200px; 
background-color:#FF8888;
margin-top:15px;

}
#logo {
margin-left:30px;
margin-right:200px;
/*hemen aşağıdaki satır problemli */
margin-top:35px;
width:400px;
height:90px;
background-image: url(logo.png);
background-repeat:no-repeat;

}
#menu {
width:780px;
height:45px;
margin-top:60px;
margin-left:10px;
margin-right:10px;
background-color:#3B3B3B;
}
#menu ul {
    margin:0;
	margin-left:20px;
    padding:0;
    list-style:none;
}
#menu ul li {
    float:left;
    margin:0;
    margin-right:5px;
    padding:0;
	margin-top:auto;
	margin-bottom:auto;
}
#menu ul li a {
    display:block;
    padding:5px 10px;
    color:#444;
	color:#FFFFFF;
    border:1px solid #3B3B3B;
    background-color:#3B3B3B;
    text-decoration:none;
}
#menu ul li a:hover {
    color:#fff;
    border-color:#FFEB00;
    background-color:#008800;
}