* {
    box-sizing: border-box;
    font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
}

#confetti-canvas {
    position: absolute;
    top: 51px;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    right: 0;
    pointer-events: none;
}

#board {
    margin: 0 auto;
    padding: 0;
    border: 0;
}

#board > div {
    display: flex;
    flex-wrap: nowrap;
    justify-content: space-between;
    align-items: center;
    margin: 2rem 0;
    padding: 0;
    border: 0;
}

.cell {
    font-size: 200%;
    border: 2px solid black;
    width: 10rem;
    height: 10rem;
    border-radius: 1rem;
    border-color: deeppink;
    border-width: 4px;
    text-align: center;
    display: flex;
    justify-content: center;
    align-items: center;
    font-family: sans-serif;
    padding: 10px;
}

/* Textbox */
.cell > p {
    max-width: 100%;
    max-height: 100%;
}

#title {
    font-size: 2rem;
    font-family: sans-serif;
    text-align: center;
    width: 100%;
    padding: 2rem;
    margin-top: 0;
    border-bottom-left-radius: 1rem;
    border-bottom-right-radius: 1rem;
    background-color: #00206D;
    color: white;
}

.checked {
    background-color: #00206D;
    color: white;
}

body {
    overflow: hidden;
    margin: 0;
}