*{
    box-sizing: border-box;
}
.gallery-item img{
    height: 100%;
    width: 100%;
    object-fit: cover;
}

#gallery{
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 10px;
}
.gallery-item{
    box-shadow: inset;
    border-radius: 4px;
}