body {
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100vh;
    gap: 16px;
}

.cont {
    width: 680px;
    height: 680px;
    display: flex;
    flex-direction: column;
    border: 1px solid #000;
}