body {
  padding: 0;
  margin: 0;
}

#main {
  position: fixed;
  background: #f1bc3b;
  width: 100%;
  height: 100%;
}

#main div {
  position: absolute;
  max-width: 390px;
  max-height: 260px;
  margin: auto;
  left: 0;
  right: 0;
  top: 0;
  bottom: 0;
  text-align: center;
}

.Ajout_cart {
  position: relative;
}

.Ajout_cart .info_ajout {
  position: absolute;
  display: block;
  padding: 10px 15px;
  background-color: rgba(27, 236, 139, 0.87);
  color: #fff;
  border-radius: 7px;
  top: -55px;
}