html { 
  margin:0;
  padding:0;
  background: url(TC_portrait.jpg) no-repeat center fixed; 
  -webkit-background-size: cover; /* pour anciens Chrome et Safari */
  background-size: cover; /* version standardisée */
}

p{
  color:white;
  position: absolute;
  bottom:10px;
  text-align: center;
}

a{
  color:white;
  font-weight : bold;
}

@media screen and (min-width: 1000px) {
  html {
  margin:0;
  padding:0;
  background: url(TC_paysage.jpg) no-repeat center fixed; 		
  -webkit-background-size: cover; /* pour anciens Chrome et Safari */
  background-size: cover; /* version standardisée */

  }
}