ممكن هل الكود

body{
background-position: center;
}
#i_logo{
margin-top: -18px;
/margin-top: -26px;
margin-bottom: -162px;
/margin-bottom: -164px;
position:enherid;
/position:relative;
}


.mainmenu ul li a {
padding: 0px;
margin: 0px;
text-decoration: none;
position:relative;
}
.mainmenu{
background-color: transparent;
position:relative;
margin: 0px;
padding: 0px;
}
#page-body{
margin-top: 84px;
margin-left: 20px;
margin-right: 20px;
}