body.home {
  background: url('../img/fond-chateau-loup.jpg') no-repeat center center fixed;
  background-size: cover;
}
.overlay {
  background-color: rgba(0, 0, 0, 0.6);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}