*{margin:0;padding:0;border:0;font-family:'Andale Mono','Courier New', Courier, monospace;font-weight:normal;font-style:normal;text-decoration:none;color:#696969;}
body{font-family:"Courier New", Courier, monospace;color:#000000;}
#main{margin:0 auto 0 auto;width:605px;font-size:10px;color:#696969;}
#displaynone{display:none;}
#menu{width:605px;margin-top:20px;font-size:10px;}
#pied{clear:both;}
h3{list-style-type:none;list-style-image:none;padding:5px 0px 5px 0px;width:602px;border-top-width:thin;border-top-style:dotted;border-top-color:#696969;font-size:10px;}
#titre{margin:0px 0px 10px 0px;width:602px;text-align:left;font-size:15px;border-top-width:0px;}
#contenu{border-top-width:thin;border-top-style:dotted;padding:6px 0px 0px 0px;width:602px;}
#contenu ul, #contenu li{list-style-type:none;list-style-image:none;font-size:10px;padding:2px 0px 2px 0px;width:192px;}
#contenu p{font-size:10px;padding:2px 0px 2px 0px;width:200px;}
#diapo1{float:right;width:400px;display:block;font-size:12px;margin-bottom:20px;}
#diapo2{float:right;width:400px;display:none;font-size:12px;margin-bottom:20px;}
--> <!-- ONGLET 1 --> #onglet1{width:600px;}
#onglet1 h4{margin:0;padding:0;}
#onglet1 #ssnav{float:left;width:150px;font-size:10px;}
#onglet1 #ssnav .ici{color:#ff7700;}
#onglet1 #bloc1, #onglet1 #bloc2{float:left;width:450px;font-size:10px;}
#onglet1 #bloc1 p{width:200px;}
#onglet1 #bloc1 img{margin-top:10px;}
#onglet1 #bloc2 ul, #onglet1 #bloc2 li{list-style-type:none;list-style-image:none;padding:5px 0px 5px 0px;width:400px;}
#onglet1 #bloc2 span{font-weight:bold;}
#onglet1 .clear{clear:both;}
<!-- ONGLET 2 --> #onglet2{width:600px;}
#onglet2 #ssnav2{float:left;width:200px;font-size:10px;}
#onglet2 #ssnav2 .ici{color:#ff7700;}
#onglet2 #bloc3, #onglet2 #bloc4{float:left;width:400px;font-size:10px;}
#onglet2 #bloc3 p{width:200px;}
#onglet2 #bloc3 ul, #onglet2 #bloc3 li{list-style-type:none;list-style-image:none;padding:5px 0px 5px 0px;width:400px;}
#onglet2 #site1, #onglet2 #site2, #onglet2 #site3, #onglet2 #site4, #onglet2 #site5{display:none;margin-bottom:50px;}
#onglet2 .clear{clear:both;}
<!-- ONGLET 3 --> #onglet3{width:600px;}
#onglet3 #ssnav3{float:left;width:200px;font-size:10px;}
#onglet3 #ssnav3 .ici{color:#ff7700;}
#onglet3 #diapo1, #onglet3 #diapo2{float:left;width:400px;font-size:10px;}
#onglet3 #diapo2{display:none;}
#onglet3 .clear{clear:both;}
<!-- ONGLET 4 --> #onglet4{width:600px;}
#adresse{width:200px;font-size:10px;}
#adresse a{color:#ff7700;}
#onglet4 .clear{clear:both;}