#onglets {
      float: left;
	  margin-left:auto;
	  margin-right:auto;
	  margin:0 0 0 0px;
      width:100%;
      background:#E8EFFF bottom;
      font-size:93%;
      line-height:normal;
      }
    #onglets ul {
      margin:0;
      padding:10px 10px 0;
      list-style:none;
      }
    #onglets li {
      float:left;
      background: url("../Images/Onglets/Left_both.gif") no-repeat left top;
      margin:0;
      padding:0 0 0 9px;
      border-bottom:1px solid #FFFFFF;
      }
    #onglets a {
      float:left;
      display:block;
      width:.1em;
      background: url("../Images/Onglets/Right_both.gif") no-repeat right top;
      padding:5px 15px 4px 6px;
      text-decoration:none;
      font-weight:bold;
      color: #006699;
      white-space:nowrap;
      }
    #onglets ul a {width:auto;}
    /* Commented Backslash Hack hides rule from IE5-Mac \*/
    #onglets a {float:none;}
    /* End IE5-Mac hack */
    #onglets a:hover {
      color:#333;
      }
    #home #operationnalisation, #news #seance1,
    #products #seance2, #about #seance3,
    #contact #seance4 {
      background-position:0 -150px;
      border-width:0;
      }
    #home #operationnalisation a, #news #seance1 a,
    #products #seance2 a, #about #seance3 a,
    #contact #seance4 a {
      background-position:100% -150px;
      padding-bottom:5px;
      color:#333;
      }
    #onglets li:hover, #onglets li:hover a {
      background-position:0% -150px;
      color: #FF0000;
      }
    #onglets li:hover a {
      background-position:100% -150px;
      }