#div_partenaires {
   margin: 40px 0;
   color: #777;
}

.div_partenaire {
   padding: 10px;
   transition: .2s;
}

.link_partenaire {
   color: inherit;
   text-decoration: none;
}
.link_partenaire span {
   transition: .2s;
}
.link_partenaire:hover span {
   color: #fff;
}
.link_partenaire:hover .div_partenaire {
   background-color: #f26f1e;
}

.div_partenaire img {
   width: 50%;
}

.titre_partenaire {
   font-size: 20px;
   font-weight: 600;
   text-transform: capitalize;
   display: block;
   margin-bottom: 10px;
   color: #333;
}

.img_partenaire {
   float: right;
   object-fit: cover;
   margin: 0 0 10px 15px;

   /* clé du comportement */
   shape-outside: inset(0);
}

@media (max-width: 500px) {
   .div_partenaire img {
      width: 100%;
   }
}