.galeria{
    text-align: center;
    position: relative;
    width: 80%;
    margin: 50px auto;
}
.galeria::before{
    content: "";
    display: block;
    width: 100%;
    height: 2px;
    position: absolute;
    background-color: black;
    top: 50%;
    z-index: -1;
}
.galeria span{
    background-color: white;
    padding: 0 15px;
}
.swiper-container {
    width: 80%;
    padding-top: 50px;
    padding-bottom: 50px;
    
}

.swiper-slide {
    background-position: center;
    background-size:cover;
    width: 400px;
    height: 350px;
}
@media only screen and (max-width:500px){   
    .swiper-container {
        width: 100%; 
    }
    .swiper-slide{
        height: 290px;
    }
}