43 dkdır uğraşıyorum cssde bi yardımcı olun!

table {margin-left: auto;margin-right: auto}
:
h1#title{display: none;}
h2#title span {display: none;}
div.header{display: none;}
li.nav_element{list-style-type: none;}
li.nav_element{display: none;}

* {padding: 0; margin:0 }

body {
margin-left: auto;
margin-right: auto;
background: url( http://img.webme.com/pic/g/gameen/95s45zhg.png) top center fixed;
}

#tasarim{
width: 1000px;
margin-left: auto;
margin-right: auto;
}



#ust{
margin-left: auto;
margin-right: auto;
background: url(http://img.webme.com/pic/g/gameen/95s45zhg.png);
width: 1000px;
height: 242px;
float: left;
}

.logo {
width:425px;
padding: 10px 0 0 25px;
float: left;
font-size: 13px;
color: #ffffff;
font-family: Comic Sans MS;
overflow: hidden;
}








.reklamalani {
width:468px;
padding: 65px 0 0 50px;
float: left;
overflow: hidden;
}

.ustmenunegro {
width:880px;
padding: 23px 0 0 99px;
float: left;
font-size: 13px;
color: #ffffff;
font-family: Comic Sans MS;
overflow: hidden;
}
#orta{
margin-left: auto;
margin-right: auto;
background: url(http://img.webme.com/pic/g/gameen/f7cdvddm.png);
width: 1000px;
height: 100%;
float: left;
}

.menunegro{
width:190px;
float: left;
padding: 0 0 0 25px;
overflow: hidden;
}

.icerikhitdizayn {
width:745px;
float: left;
padding: 0 0 0 40px;
overflow: hidden;
text-align: justify;
}


#alt{
margin-left: auto;
margin-right: auto;
background: url(http://img.webme.com/pic/b/bilgisayarfareleri/fsh.jpg);
width: 1000px;
height: 50px;
float: left;
}
<style type="text/css">


.arrowlistmenu{
width: 180px; /*width of menu*/
}

.arrowlistmenu .headerbar{
font: bold 12px Comic Sans MS;
color: white;
background: black url( http://s3.directupload.net/images/091023/qogxvo7h.png ) repeat-x center left;
margin-bottom: 10px; /*bottom spacing between header and rest of content*/
text-transform: uppercase;
padding: 4px 0 4px 10px; /*header text is indented 10px*/
}

.arrowlistmenu ul{
list-style-type: none;
margin: 0;
padding: 0;
margin-bottom: 8px; /*bottom spacing between each UL and rest of content*/
}

.arrowlistmenu ul li{
padding-bottom: 2px; /*bottom spacing between menu items*/
}

.arrowlistmenu ul li a{
color: brown;
background: url(http://acutasarim.com/acu/betizler/ok.png) no-repeat center left; /*custom bullet list image*/
display: block;
padding: 2px 0;
padding-left: 19px; /*link text is indented 19px*/
text-decoration: none;
font-weight: bold;
border-bottom: 1px solid #dadada;
font-size: 90%;
}

.arrowlistmenu ul li a:visited{
color: #A70303;
}

.arrowlistmenu ul li a:hover{ /*hover state CSS*/
color: #A70303;
background-color: #F3F3F3;
}

body {
margin: 0px;
padding: 0px;
background: #fff url(http://s5.directupload.net/images/091031/hcwk6bza.png);
}
</style>

#alt{
margin-left: auto;
margin-right: auto;
background: url(http://img.webme.com/pic/b/bilgisayarfareleri/fsh.jpg);
width: 1000px;
height: 50px;
float: left;
}
<style type="text/css">

height: 50px;

#alt{
margin-left: auto;
margin-right: auto;
background: url();
width: 1000px;
height: 117px;
float: left;
}