* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    background-color:#1b1f23;
}

/*whatsapp*/
.whatsapp-pc {
    visibility: hidden;
    position: fixed;
    color:#4DC247;
    font-size: 40px;
    right: 80px;
    bottom:40px;
    z-index: 4;
}
.whatsapp-mobil {
    visibility: visible;
    position: fixed;
    color: #4DC247;
    font-size: 40px;
    right: 25px;
    bottom:35px;
    z-index: 4;
    }
/*fin whatsapp*/  

.contenedor-banner {
      display: flex;
      justify-content: center;
      align-items: center;
      width: 100%;
      height: 100%;
}
.banner-img {
    background-image: url(img/30_de_descuento_en_radiadores_latyn_pc.gif);
    background-position: center;
    background-size: contain;
    background-repeat: no-repeat;
    width: 100%;
    height: 100vh;
}


/*media (min-width:768px) and (max-width:980px) {
    .whatsapp-pc {
        font-size: 40px;
        visibility: visible;
    }
    .whatsapp-mobil {
        visibility: hidden;
    }
    .banner-img {
        background-image: url(img/30_de_descuento_en_radiadores_latyn_tablet.gif);
    }
}*/

@media (max-width:620px){
    .whatsapp-pc {
        font-size: 40px;
        visibility: hidden;
    }
    .whatsapp-mobil {
        visibility: visible;
    }
    .banner-img {
        background-image: url(img/30_de_descuento_en_radiadores_latyn_mobil.gif);
    }
}