body#not401{
background:#000000 url(../img/401.jpg) no-repeat center 300px;
}
body#not404{
background:#000000 url(../img/404.jpg) no-repeat center 300px;
}
body#not403{
background:#000000 url(../img/403.jpg) no-repeat center 300px;
}
body#not500{
background:#000000 url(../img/500.jpg) no-repeat center 300px;
}