#hero {
  background-image: url('../images/banner/bannerLocation.jpg');
}
.image-wrapper {
  align-items: center;
  justify-content: center;
  height: 300px;
  /* height de parent de img */
  overflow: hidden;
  background-color: #fff;
  /* coulor pour espaces vides autour de images  */
}
.image-wrapper img {
  max-width: 100%;
  height: 100%;
  object-fit: cover;
}