.hero .hero-media {
    /* Chasse */
    /*background-image:url(//s3.amazonaws.com/imagescloud/images/rf/lvy/20150825-m.jpg);*/
    /* Pêche */
    background-image:url(//s3.amazonaws.com/imagescloud/images/rf/lvy/20220714-m.jpg); 
}

@media only screen and (min-width: 768px) {
  .hero .hero-media {
    /*Chasse */
   /*background-image:url(//s3.amazonaws.com/imagescloud/images/rf/lvy/20150825.jpg);*/
    /* Pêche */ 
     background-image:url(//s3.amazonaws.com/imagescloud/images/rf/lvy/20220714.jpg); 
  }
}