#colonnecentrale {position: absolute;
            z-index:1;
            left: 50%;
            top:50%;
            width: 994px;
            height: 700px;
            margin-left: -497px;
            margin-top: -350px;
            border: 0px solid red;
/*          background-color: #858383;             */
            background-color: #952322;
            }
#navigateurs {position: absolute;
      z-index:1;
      top: 705px;
      left: 25px;
      width: 980px;
      height: 20px;
      color: maroon;
      font-size: 12px;
      }