body
{
   




   width: 760px;
   margin: auto;
   margin-top: 20px;
   margin-bottom: 20px;    
   background-image:url("fond.png");


   
   
}


/* L'en-tête */

#en_tete
{
   width: 760px;
   height: 100px;
   background-image:url("banniere.png");
   background-repeat: no-repeat;
   margin-top: 10px;
   margin-bottom: 10px;