.popup-grades-cosmetic .popup-grades-wrapper .grades-right .swiper .swiper-slide:nth-child(1n) {
    background-image: url('../images/CosmeticAdditives/Metal%20Stearate(Al,%20Ca,%20Mg,%20Zn,%20K).jpg');
    background-repeat: no-repeat;
    background-size: cover;
}

.popup-grades-cosmetic .popup-grades-wrapper .grades-right .swiper .swiper-slide:nth-child(2n) {
    background-image: url('../images/CosmeticAdditives/Polysorbates(20,%2060,%2080).jpg');
    background-repeat: no-repeat;
    background-size: cover;
}

.popup-grades-cosmetic .popup-grades-wrapper .grades-right .swiper .swiper-slide:nth-child(3n) {
    background-image: url('../images/CosmeticAdditives/PEG%20Esters%20(Mono&Di-Stearates).jpg');
    background-repeat: no-repeat;
    background-size: cover;
}


.popup-grades-cosmetic .popup-grades-wrapper .grades-right .swiper .swiper-slide:nth-child(4n) {
    background-image: url('../images/CosmeticAdditives/HydrogenatedCastorOil(HCO).jpg');
    background-repeat: no-repeat;
    background-size: cover;
}