.image_backgroud {
                  background-image:url(Photos/Bandeau/Bambou_1.png);
                  background-size: 100 auto;
                }
                .image_backgroud2 {      
                  margin:0;
                  padding:0;
                  background: url(Photos/Bandeau/Bambou_1.png) no-repeat center center fixed; 
                  background-size: cover; 
                }
                .image_backgroud3 {
                  background-image:url(Photos/Bandeau/lotus_1.png);
                  background-size: 100% auto;
                }
                .image_backgroud4 {
                  background-image:url(Photos/Promo/Moustic_1.png);
                  background-size: 100% auto;
                }

            .pics { margin: 2% auto 1% auto }
            div.caption { margin: 5px auto; width: 200px; text-align: center; color: #888 }
            pre { margin: auto }