body {
background-color: #FFFFFF;
}
#menu_line {
display: none;
}
#header_line {
display: none;
}
#content_line {
background-color: #FFFFFF;
width: 900px;
}
#content {
background-color: #FFFFFF;
width: 900px;
}
stront {
display: inline;
}

#tocmenu {
display: none;
}
#wotocmenu {
display: none;
}
.menu_technique {
display: none;
}
#footer_line {
display: none;
}