html {
    box-sizing: border-box;
}

*,
*:before,
*:after {
    box-sizing: inherit;
}

#container {
    width: 70%;
    aspect-ratio: 1;
    background-color: black;
    position: relative;
    margin: 0 auto;
}

.row {
    width: 100%;
    display:flex;
    flex-direction: row;
    justify-content: space-between;
    align-items:start;
    flex-wrap: nowrap;
}

.cell {
    background-color: black;
    border: 0.5px solid rgb(142, 142, 142);
    aspect-ratio: 1;
}