.logo_grand {
  display:block;
  height: 12.5rem;
  margin: 0 auto 1.5rem auto;
}

.calendar{
  display: flex;
  justify-content: center;
}

.box_gallery {
  max-width: 100em;
  flex: 1;
  margin: 0 auto; /*permet de centré si la taille est dépassé*/
  padding: 1% 10% 2% 10%;
  
}

.gallery {
  display: flex;
  width: max-content;
  animation: scroll 15s linear infinite;
}

.photo {
  height: 15rem;
}

@keyframes scroll {
  0% {
    transform: translateX(0);
  }
  100% {
    transform: translateX(-50%);
  }
}