gallery.css

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    padding: 0;
}

.back {
    width: 5rem;
    height: 5rem;
    border-radius: 50%;
    background-color: black;
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    position: fixed;
    bottom: 5rem;
    right: 5rem;
}

.gallery-cont {
    background-color: rgb(218, 234, 239);
    min-height: 100vh;
    width: 100vw;
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
}

.media-cont {
    height: 15rem;
    width: 15rem;
    border: 10px solid white;
    margin: 2rem;
}

.media {
    height: calc(100% - 2rem - 2rem);
}

.media>* {
    width: 100%;
    height: 100%;
    object-fit: fill;
}

.action-btn {
    height: 2rem;
    color: white;
    display: flex;
    justify-content: center;
    align-items: center;
    cursor: pointer;
}

.download {
    background-color: black;
}

.delete {
    background-color: rgb(203, 61, 61);
}