.group-cover-photo{
    width:100vw;
    max-height: 40vh;
    min-height: 20vh;
    object-fit: cover;
    box-sizing: border-box;
}

@media screen and (max-width:700px) {
    .group-cover-photo{
        max-height: 30vh;
        min-height: 20vh;
    }
}