body {
    margin: 0;
    text-align: center;
    font-family: sans-serif;
    font-size: 14px;
}

.wheel {
    stroke: midnightblue;
    stroke-width: 4px;
    fill: none;
}

.spoke {
    stroke: darkslategrey;
    stroke-width: 8px;
    stroke-linecap:round;
}

#controls {
    position: absolute;
    margin: 8px;
}

.info-section {
    position: absolute;
    text-align: center;
    bottom: 6px;
    margin: auto;
    left: 50%;
    transform: translate(-50%, 0);
}

.freq-info {
    width: 35px;
    display: inline-block;
    text-align: center;
}