body {
    color: #eee;
}

canvas {
    display: block;
}

#config {
    background: #222;
    padding: 10px;
    width: 300px;
    position: fixed;
    right: 0;
    opacity: 0.5;
    transition: opacity 0.25s ease-in-out;
}

#config:hover {
    opacity: 0.9;
}

#config-buttons {
    margin-top: 15px;
    display: flex;
    gap: 10px;
}

#config>button {
    float: right;
}

#config>.param>label {
    display: block;
    margin-top: 10px;
}

#config[data-hidden="true"] {
    width: auto;
}

#config[data-hidden="true"]>*:not(button) {
    display: none;
}

label {
    font-size: 0.9em;
}