#photoAff{
  height:600px;
  width:800px;
  background-repeat: no-repeat;
  background-position: center;
  background-size: contain;
  cursor:pointer;
  border: 10px solid;
  background-color: black;
}
#photoGrande{
  width:100%;
  background-color:white;
  background-repeat: no-repeat;
  background-position: center;
  background-size: contain;
  cursor:pointer;
  position:absolute;
  top:0;
  left:0;
  display:none;
  z-index:100;
}
#photoPrecedente, #photoSuivante{
  background-repeat: no-repeat;
  background-position: center;
  background-size: contain;
  height: 30px;
  width: 30px;
  cursor: pointer;
  margin: 10px;
  /* visibility: hidden; */
}

h1{
  font-family: back;
  font-size: 1.5em;
  text-align: center;
}
h2{
  font-family: back;
  font-size: 1.2em;
  margin: 50px 0 0 0;
}

@media (max-width: 1200px){
  #photoAff{height:340px;}
}