ul.main-categories {
    margin: 0 auto;
    padding: 0;
    list-style: none;
    display: grid;
    grid-template-columns: repeat(6, 216px);
    gap: 0px 0px;
    justify-content: center;
}

ul.main-categories li {
    margin: 0;
    padding: 0;
    border: solid #e7e7e7 1px;
    background-position: right 50% bottom 90px;
    background-repeat: no-repeat;
    overflow: hidden;
}

ul.main-categories li a {
    position: relative;
    display: block;
    height: 216px;
}

ul.main-categories li a strong {
    position: absolute;
    left: 0;
    bottom: 35px;
    display: block;
    width: 100%;
    font-family: "Open Sans", sans-serif;
    font-weight: 600;
    color: #000;
    font-size: 14px;
    text-transform: uppercase;
    text-decoration: none;
    text-align: center;
}

ul.main-categories li:hover {
    -webkit-box-shadow: 0px 0px 15px 0px rgba(0, 0, 0, 0.1);
    -moz-box-shadow: 0px 0px 15px 0px rgba(0, 0, 0, 0.1);
    box-shadow: 0px 0px 15px 0px rgba(0, 0, 0, 0.1);
}

ul.main-categories li a:hover {
    text-decoration: none;
}

ul.main-categories li.missing {
    background-image: url("../img/categories/_brak.png");
}

ul.main-categories li.narozniki {
    background-image: url("../img/categories/narozniki.png");
}

ul.main-categories li.sofy {
    background-image: url("../img/categories/sofy.png");
}

ul.main-categories li.komody {
    background-image: url("../img/categories/komody.png");
}

ul.main-categories li.komody-szafki {
    background-image: url("../img/categories/komody-szafki.png");
}

ul.main-categories li.szafy {
    background-image: url("../img/categories/szafy.png");
}

ul.main-categories li.witryny {
    background-image: url("../img/categories/witryny.png");
}

ul.main-categories li.stoly {
    background-image: url("../img/categories/stoly.png");
}

ul.main-categories li.krzesla {
    background-image: url("../img/categories/krzesla.png");
}

ul.main-categories li.lozka {
    background-image: url("../img/categories/lozka.png");
}

ul.main-categories li.szafki-rtv {
    background-image: url("../img/categories/szafki-rtv.png");
}

ul.main-categories li.regaly {
    background-image: url("../img/categories/regaly.png");
}

ul.main-categories li.materace {
    background-image: url("../img/categories/materace.png");
}

ul.main-categories li.pozostale {
    background-image: url("../img/categories/pozostale.png");
}

ul.main-categories li.stelaze {
    background-image: url("../img/categories/stelaze.png");
}

ul.main-categories li.szafki-nocne {
    background-image: url("../img/categories/szafki-nocne.png");
}

ul.main-categories li.toaletki {
    background-image: url("../img/categories/toaletki.png");
}

ul.main-categories li.biurka {
    background-image: url("../img/categories/biurka.png");
}

ul.main-categories li.kontenerki {
    background-image: url("../img/categories/kontenerki.png");
}

ul.main-categories li.polki {
    background-image: url("../img/categories/polki.png");
}

ul.main-categories li.mebloscianki {
    background-image: url("../img/categories/mebloscianki.png");
}

ul.main-categories li.lawy {
    background-image: url("../img/categories/lawy.png");
}

ul.main-categories li.szafki-na-buty {
    background-image: url("../img/categories/szafki-na-buty.png");
}

ul.main-categories li.wieszaki-na-ubrania {
    background-image: url("../img/categories/wieszaki-na-ubrania.png");
}

ul.main-categories li.przedpokoje-zestawy {
    background-image: url("../img/categories/przedpokoje-zestawy.png");
}

ul.main-categories li.lustra {
    background-image: url("../img/categories/lustra.png");
}

ul.main-categories li.lawki {
    background-image: url("../img/categories/lawki.png");
}

ul.main-categories li.fotele {
    background-image: url("../img/categories/fotele.png");
}

ul.main-categories li.pufy {
    background-image: url("../img/categories/pufy.png");
}

ul.main-categories li.wersalki {
    background-image: url("../img/categories/wersalki.png");
}

ul.main-categories li.hokery {
    background-image: url("../img/categories/hokery.png");
}

ul.main-categories li.taborety {
    background-image: url("../img/categories/taborety.png");
}

ul.main-categories li.meble-tapicerowane {
    background-image: url("../img/categories/meble-tapicerowane.png");
}

ul.main-categories li.szafki-wiszace {
    background-image: url("../img/categories/szafki-wiszace.png");
}

ul.main-categories li.pokaz-mniej {
    background-image: url("../img/categories/pokaz-mniej.png");
}

ul.main-categories li.krzesla-obrotowe {
    background-image: url("../img/categories/krzesla-obrotowe.png");
}

/* only for X-LARGE */
@media all and (min-width: 1200px) and (max-width: 1399px) {
    ul.main-categories {
        grid-template-columns: repeat(6, 186px);
    }

    ul.main-categories li {
        background-position: right 50% bottom 70px;
    }

    ul.main-categories li a {
        height: 186px;
    }

    ul.main-categories li a strong {
        bottom: 25px;
    }
}

/* only for LARGE */
@media all and (min-width: 992px) and (max-width: 1199px) {
    ul.main-categories {
        grid-template-columns: repeat(6, 157px);
    }

    ul.main-categories li {
        background-position: right 50% bottom 60px;
    }

    ul.main-categories li a {
        height: 157px;
    }

    ul.main-categories li a strong {
        bottom: 20px;
    }
}

/* only for MEDIUM */
@media all and (min-width: 768px) and (max-width: 991px) {
    ul.main-categories {
        grid-template-columns: repeat(4, 174px);
    }

    ul.main-categories li {
        background-position: right 50% bottom 70px;
    }

    ul.main-categories li a {
        height: 174px;
    }

    ul.main-categories li a strong {
        bottom: 25px;
    }
}

/* only for SMALL */
@media all and (min-width: 576px) and (max-width: 767px) {
    ul.main-categories {
        grid-template-columns: repeat(3, 172px);
    }

    ul.main-categories li {
        background-position: right 50% bottom 70px;
    }

    ul.main-categories li a {
        height: 172px;
    }

    ul.main-categories li a strong {
        bottom: 25px;
        font-size: 13px;
    }
}

/* up to X-SMALL */
@media all and (max-width: 575px) {
    ul.main-categories {
        grid-template-columns: repeat(3, 33%);
    }

    ul.main-categories li {
        background-position: right 50% bottom 60px;
    }

    ul.main-categories li a {
        height: 150px;
    }

    ul.main-categories li a strong {
        bottom: 20px;
        font-size: 13px;
    }
}