body {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-flow: column;
}

#container {
    display: flex;
    border: 10px double #b4b4ff;
    border-radius: 1em;
    flex-wrap: wrap-reverse;
    height: fit-content;
    cursor: pointer;
}

#moves::before {
    content: "Moves left: ";
}

#container div {
    height: 50px;
    width: 50px;
    border: 1px solid white;
    border-radius: inherit;
    transition: box-shadow .3s
}