body {
background-color:#ffe4c4;
}

 #nav {
   border:1px solid black;
   padding:0.5em;
   margin-top:1em;
   background-color:#deb887;
   text-align:center;
   color:black;
  }
    #nav a:hover {
   color:blue;
   background-color:white;
   }
   #nav a:visited {
   color:green;
   }
h3 {
   color:blue;
   }
#contenu {
   border: 1px solid black;
   position:relative;
   width:90%;
   left:4%;
   right:4%;
   padding:1.4em;
   color:blue;
   }