@media screen and (min-width: 768px) {
    div.navbar-brand {
        background-image: url('imgs/prf/hlavicka_prf_katedra-algebry-a-geometrie_cz_barva.svg');
        width: 225px;
    }
    div.navbar-brand:hover {
        background-image: url('imgs/prf/hlavicka_prf_katedra-algebry-a-geometrie_cz_bila.svg');
    }
    div.navbar-brand--en {
        background-image: url('imgs/prf/hlavicka_prf_katedra-algebry-a-geometrie_en_barva.svg') !important;
        width: 277px;
    }
    div.navbar-brand--en:hover {
       background-image: url('imgs/prf/hlavicka_prf_katedra-algebry-a-geometrie_en_bila.svg') !important;
    }
}
@media screen and (min-width: 992px) and (max-width: 1199px) {
    div.navbar-brand {
        width: 245px;
    }
    div.navbar-brand--en {
        width: 302px;
    }
}
@media screen and (min-width: 1200px) {
    div.navbar-brand {
        width: 331px;
    }
    div.navbar-brand--en {
        width: 408px;
    }
}