body {
    width: 680px;
}

#header {
    display: none;
}

#content_navigation {
    display: none;
}

#page {
    margin-left: 1cm;
    width: 680px;
}

#content {
    width: 680px;
}

#first_header {
    border: none;
}

#content_content {
    width: 680px;
}