body {
    margin: 0;
}

canvas {
    /* width: 600px;
    height: 800px; */
    display: block;
    margin: auto;
    width: 100%;
    max-width: 500px;
}

/* Add your styles here */
.banner {
    position: relative;
}
.button-container{
    max-width: 500px;
}