Требуется помощь с css или скриптом

помогите с css, почему весь сайт слезает в левый угол?
Код:

html,body{
height:100%;
min-height:100%;
overflow:hidden;
background: #000000 url(images/header.jpg) no-repeat center top;;
}

div{
position:absolute
}

.layer1{
background:url(images/layer1.png);
width:1347px;
height:542px;
top:0px;
left:0px
}

.layer2{
background:url(images/layer2.png);
width:1207px;
height:523px;
top:0px;
left:0px
}

.layer3{
background:url(images/layer3.png);
width:1266px;
height:503px;
top:0px;
left:0px
}



a{
text-decoration:underline;
color:#BF2F68;
}
p{
text-align:justify;
line-height:15px;
padding:5px 0 5px 0;
font-size:11px;
margin:0px;
}
#main_container{
width:902px;
height:auto;
margin:auto;
padding:0px;
}
#header{
width:902px;
height:109px;
margin:auto;
background:url(images/top_menu_bg.png) no-repeat center;behavior: url(iepngfix.htc);
}
.logo{
padding:15px 0 0 0;
float:left;
}

/*---------------- menu tab----------------------*/
#menu_tab{
width:470px;
float:left;
padding:0px;
}

ul.menu {
list-style-type:none; display:block; width:470px; 
margin: auto; padding:65px 0 0 0; background:none;}

ul.menu li {
display:inline;
font-size:13px;
font-weight:bold;
line-height:28px;}

ul.menu li.divider {
display:block;
float:left;
width:1px;
height:31px;
padding:0px ;
margin:0px;
background:url(images/divider.gif) no-repeat center;
}

a.nav:link, a.nav:visited {
display:block; float:left; padding:0px; margin:0;width: auto; margin:0px 14px 0px 14px; text-align:center;
text-decoration:none; background:none; color:#fff;}

a.nav_selected:link, a.nav_selected:visited {
display:block; float:left; padding:0px; margin:0;width: auto;margin:0px 14px 0px 14px;text-align:center;
text-decoration:none; color: #BF2F68;}

a.nav:hover {
color: #BF2F68; text-decoration:none;}

/*-----------------search_tab----------------*/
.search_tab{
float:left;
width:200px;
padding:70px 0 0 0;
}
input.search{
width:150px;
height:20px;
border:none;
float:left;
background-color:#8c4e67;
color:#b48e9b;
padding:0 0 0 5px;
}
input.search_bt{
float:left;
padding:0 0 0 5px;
}
.left_sidebar{
width:180px;
float:left;
}
.submenu_pic{
padding:10px 0 0 28px;
}
/*--------------left menu----------------*/
#left_menu{
position:relative;
top:-10px;
left:-15px;
float:left;
}
#left_menu ul{
list-style-type:none; width: 177px;
margin:0; padding:0;}

#left_menu li {
display:block;}

#left_menu li a {
display:block; padding:0 0 0 25px; height:30px;text-align:left; line-height:30px;
text-decoration:none; background-color:#d4847f; color:#FFFFFF;border-bottom:1px #da9591 solid;}
#left_menu li.selected a {
display:block; padding:0 0 0 25px; height:30px;text-align:left; line-height:30px;
text-decoration:none;background:url(images/left_menu_bullet.gif) no-repeat left #b0335d; color:#FFFFFF;border-

bottom:1px #da9591 solid; background-position:5px 8px;
}
#left_menu li a:hover {
display:block; padding:0 0 0 25px; height:30px;text-align:left;
text-decoration:none; background:url(images/left_menu_bullet.gif) no-repeat left #b0335d; color:#FFFFFF;border-

bottom:1px #da9591 solid; background-position:5px 8px;
}
/*----------------main_content----------------*/
#main_content{
width:902px;
clear:both;
background-color:#2a0a0d;
height:auto;
margin:20px 0 0 0;
}

#center_content{
width:700px;
float:left;
height:auto;
padding:10px 0 30px 5px;
}
.title{
clear:both;
padding:5px 0 10px 0;
color:#FFFFFF;
}
.title a{
color:#DF6195;
text-decoration:underline;
}
.product_box{
width:320px;
height: auto;
margin:auto;
float:left;
padding:8px;
margin:0 0 8px 8px;
border:1px #9e1c50 solid;
}
.product_box_details{
width:640px;
height: auto;
margin:auto;
float:left;
padding:8px;
margin:0 0 0 8px;
border:1px #9e1c50 solid;
}
img.prod_image{
float:left;
padding:0 10px 0 0;
}
.product_details{
float:left;
width:165px;
}
.product_details_wide{
float:left;
width:450px;
}
.prod_title{
color:#d4847f;
padding:0 10px 0 0;
}
span.price{
font-size:24px;
color:#a6f2a4;
}
p.price{
color:#d4847f;
}
a.details{
display:block;
padding:10px 0 0 0;
}
p.shop_by_brand{
width:400px;
float:left;
padding:0 10px 0 0;
line-height:17px;
}
p.gifts_details{
width:275px;
float:left;
padding:0 0 0 10px;
line-height:17px;
}
img.sp{
float:left;
padding:0 5px 0 5px;
}
img.gift{
float:left;
padding:5px;
margin:5px;
border:1px #9e1c50 solid;
}


/*---------------------pagination-----------------------------*/

div.pagination {
padding:5px;
margin:5px;
text-align:center;
float:left;
font-size:10px;
}

div.pagination a {
padding: 2px 5px 2px 5px;
margin-right: 2px;
border: 1px solid #ddd;

text-decoration: none; 
color: #d8325d;
}
div.pagination a:hover, div.pagination a:active {
border:1px solid #ddd;
color: #fff;
background-color: #d8325d;
}
div.pagination span.current {
padding: 2px 5px 2px 5px;
margin-right: 2px;
border: 1px solid #ddd;
font-weight: bold;
background-color: #d8325d;
color: #FFF;
}
div.pagination span.disabled {
padding: 2px 5px 2px 5px;
margin-right: 2px;
border: 1px solid #ddd;
color: #ccc;
}
/*------contact form------*/
#contact_form{
float:left;
width:300px;
padding:10px 10px 0 10px;
color:#fff;
}
.contact_input{
width:240px;
height:17px;
font-size:10px;
float:left;
background-color:#3F1015;
border:1px #6F222B solid;
color:#FFFFFF;
}
label.contact_form{
width:50px;
float:left;
padding:0 0 5px 0;
font-size:12px;
color:#FFFFFF;
}
.contact_textarea{
width:290px;
height:80px;
font-size:10px;
float:left;
color:#FFFFFF;
background-color:#3F1015;
border:1px #6F222B solid;
}
input.contact_submit{
float:right;
padding:10px;
}
.cleardiv {
clear:both;
overflow:hidden;
height:4px;
}
.clear{
clear:both;
}
/*----footer---------*/
#footer{
width:auto;
clear:both;
padding:15px 0 10px 0;
margin:20px 0 0 0;
height:60px;
border-top:1px #3a0f17 solid;
text-align:center;
color:#73363c;
}
.left_foter{
float:left;
padding:5px 0 0 10px;
}
.center_footer{
float:left;
padding:10px 0 0 160px;
}
#footer a{
color:#73363c;
text-decoration:none;
}
сайт на место встаёт, но скрол пропадает и часть фона..