body {
    font-family: Arial, sans-serif;
    text-align: center;
}

.logo {
    width: 150px;
    display: block;
    margin: auto;
}

canvas {
    border: 1px solid black;
    background: white;
    touch-action: none;
}

button {
    margin: 10px;
    padding: 10px;
    background: blue;
    color: white;
    border: none;
    cursor: pointer;
}