:root {
    font-size: 10px;
}
body {
    overflow-y: scroll;
}
#canvas-container {
    width: 100%;
    height: auto;
    box-shadow: 0 0 5px palegreen;
    overflow-y: hidden;
}
canvas {
    display: block;
}
#settings-box {
    position: absolute;
    top: 10px;
    right: 10px;
    z-index: 2;
    font-size: 2rem;
    text-align: right;
}