body {
    background: lightslategray;
}
.pf-bottom-control {
    position: fixed;
    bottom: 1em;
}
#pf-load-font-button-label,
#pf-load-svg-button-label {
    left: 1em;
    margin: 0;
}
#pf-rendering-options-group {
    right: 1em;
}
#pf-canvas {
    display: block;
    touch-action: none;
}
#pf-fps-label {
    position: absolute;
    right: 1em;
    margin-top: 1em;
    color: white;
    background: rgba(0, 0, 0, 0.75);
}