body {
    background-color: #1a1a1a;
    color: #f0f0f0;
    font-family: sans-serif;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    margin: 0;
    padding: 20px;
    box-sizing: border-box;
}

canvas {
    border: 2px solid #f0f0f0;
    background-color: #334;
    cursor: crosshair;
}

h1 {
    text-align: center;
}

.instructions {
    border: 1px solid #555;
    padding: 0 20px;
    margin-bottom: 20px;
    max-width: 400px;
}

.instructions ul {
    list-style: none;
    padding: 0;
}

.instructions li {
    margin-bottom: 5px;
}