html, body {
    padding: 0; margin: 0;
    text-align: center;
    background: #d388b3;
    color: #d8d6c2;
}

#playStopButton {
    background-color: #de793a;
    border: none;
    color: #ffffff;
    font-size: 1.5em;
    padding: 0.5em 1.5em;
}

#playStopButton:active {
   background: #ffffff;
}

div {
    font-size: 1.5em;
}

#frequencyContainer {
    background: #d69595;
    width: 100%;
}

#detuneContainer {
    background: #dd8585;
    width: 100%;
}

#qContainer {
    background: #db6d6d;
    width: 100%;
}

#gainContainer {
    background: #db5a5a;
    width: 100%;
}

#typeContainer {
    background: #db4a4a;
    width: 100%;
}

.slider {
    margin: 0;
    -webkit-appearance: none;
    appearance: none;
    width: 100%;
    height: 25px;
    background: #d3a588;
    outline: none;
    opacity: 0.7;
    -webkit-transition: .2s;
    transition: opacity .2s;
}

.slider:hover {
    opacity: 1;
}

.slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 25px;
    height: 25px;
    background: #303bc3;
    cursor: pointer;
}

#selectList {
    margin-top: 1em;
    margin-bottom: 1em;
    font-size: 0.8em;
}