.item.references a {
    word-break: break-all;
}

.pkp_site_name .is_img img {
    max-height: 370px !important;
}

@media screen and (max-width: 768px) {
   /* Twoje style CSS dla smartfon??w tutaj */
.pkp_site_name .is_img img {
    max-height: 180px !important;
}
}