Eliminar menu y colocar box

<style type="text/css">
table.edit_main_table{width: 100% !important;}
td.edit_main_tr{width: 100% !important;}
table.edit_second_table{width: 100% !important;}
td.edit_header_full{width: 100% !important;}
td.edit_header_full table{width: 100% !important;}
table.edit_third_table{width: 100% !important;}
td.edit_navi_headbg{width: 15% !important;}
table.edit_rechts_tabelle{width: 100% !important;}
td.edit_rechts_bottom{width: 15% !important;}
td.edit_rechts_cbg{width:100%;}
td.edit_header_full{
width: 100% !important;
background-repeat:no-repeat;
background-position:center center;
background-image: url();}
td.nav{
text-decoration: none;
color: #transparent;
width: 10px;
height: 10px;
background-image: url();}
td.nav:hover{
color: #transparent;
width: 10px;
height: 10px;
background-image: url();}
td.edit_navi_headbg{
margin: 0px;
padding: 0px;
background-image: url();
background-color: #transparent;
width: 10px;
background-repeat: repeat-y;}
td.edit_below_nav{
visibility: hidden;
width: 10px;}
td.edit_below_nav img{
visibility: hidden;
width: 10px;}
td.nav_heading{
width: 10px;
height: 10px;
background-image: url();
background-color: #transparent;
padding-top: 0px;
font-weight: bold;
font-size: 15px;
text-decoration: none;}
td.edit_navi_headbg table{
width: 0px;}
td.edit_content_bottom{
background-image: url();
background-color: #transparent;
text-align: right;}
td.edit_content_bottom2{
background-image: url();
background-color: #transparent;
text-align: right;}
//--></style>