.banner-konview {
    background-image: url("../img/adaptaciones/04_gastro/konview/banner.png");
    background-size: cover;
    width: 100%;
    height: auto;
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
}

.banner-konview:before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0.3;
    z-index: 0;
    background-color: #1c1c1c;
}

.banner-konview img {
    height: 600px;
    width: auto;
    z-index: 1; 
}