.gallery-container {
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 4px;
    width: 100%;

    background-color: white;
    border: 2px solid black;
    padding: 12px;
    width: calc(100% - 24px - 4px); /* minus 2x padding minus 2x border*/

    & .pic-container img {
        width: 100%;
        height: 100%;
        object-fit: cover;
    }
}