#contenu
   {
   text-align: left;
   }
#contenu img
   {
   position: absolute;
   right: 1em;
   margin-top: 4em;
   }
#contenu ul.niv1
   {
   font-size: 100%;
   line-height: 2em;
   text-align: left;
   font-weight: bold;
   list-style-image: URL('../img/list_1.png');
   }

#contenu ul.niv2
   {
   font-size: 100%;
   line-height: 1em;
   text-align: left;
   font-weight: normal;
   list-style-image: URL('../img/list_2.png');
   }