body {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    margin: 0;
    background-color: #3298fe;
}

.grid {
    width: 600px;
    height: 600px;
    border: 1px solid black;
    display: flex;
    flex-wrap: wrap;
    background-color: white;
}

.grid-cell {
    border: 1px solid black;
    box-sizing: border-box;
    background-color: white;
}

#new-grid {
    margin-bottom: 10px;
}