body {
        font-family: Arial, sans-serif;
        padding: 20px;
        text-align: center;
        background-color:black;
        color:white;
    }
    input, select, button {
        margin: 1px;
        padding: 1px;
        font-size: 18px;
    }
    canvas {
        display: block;
        margin: 20px auto;
    }
    .container {
        display: flex;
        flex-direction: column;
        align-items: left;
        justify-content: left;
        padding: 20px;
        max-width: 400px;
        margin:auto;
        text-align: left;
    }