#menu {
 float:left;
 width:250px;
 position:fixed;
 font-family:Arial, Helvetica, sans-serif;
 font-size:68%;
 background-color:#FFFFCC;
 padding:10px 5px 10px 5px;
 text-align:justify;
 }
#menu a { text-decoration:none; font-weight:bold; color:#585BDA; padding:2px;}
#menu a:hover { text-decoration:none; font-weight:bold; color:#FFFFCC; padding:2px; background-color:#585BDA;}
#contenu {
 float:right;
 padding:0px 0px 0px 265px;
 font-family:Arial, Helvetica, sans-serif;
 font-size:85%;
 }
a.retour  { font-size:120%; text-align:center;}
a:hover.retour  { font-size:120%; text-align:center;}