body, html {
  height: 100%;
  margin: 0;
}

.bg {
  background-color: #FFF;
  background-image: url("images/back.jpg");

  height: 100%;

  background-position: center;
  background-repeat: no-repeat;
  background-size: cover;

  font-family: 'PoppinsExtraLight';
  text-align: center;

  -moz-user-select: none; /* Firefox */
  -webkit-user-select: none; /* Chrome, Safari, Opéra depuis la version 15 */
  -ms-user-select: none; /* Internet explorer depuis la version 10 et Edge */
  user-select: none; /* Propriété standard */
}

h1 {
    position: absolute;
    margin: 0;
    width: 100%;
    font-size: 100px;
    letter-spacing: 10px;
    color: white;
}