#faux {
   position:relative;
   z-index:1;
   overflow:hidden;
width:1000px;
}

#faux div {
   position:relative;
   float:left;
}

#faux .main {left:160px; width:640px;
}
#faux .supp1 {right:630px; width:170px}
#faux .supp2 {left:-10px; width:180px;}

#faux:before,
#faux:after {
   content:"";
   position:absolute;
   z-index:-1;
   top:0;
   right:0;
   bottom:0;
   left:160px;
   width:640px;
   margin-top: 10px;
   margin-bottom:10px;
   border-left:2px solid #464646;

}

#faux:after {
   left:800px;
   width:170px;

}