* {
    margin: 0;
}

body {
    background: #111;
    color: #EEE;
    text-align: center;
    font-family: "Space Mono", monospace;
    font-size: 30px;
}

h1 {
    margin-top: -20px;
}
.lower {
    margin-top: -18px;
}

h2 {
    font-size: 0.5em;
}

h3 {
    font-size: 0.5em;
}

.data {
    margin: 10px;
}

span {
    display: block;
    
}

.controls {
    position: absolute;
    top: 5px;
    left: 5px;
    width: 300px;
    height: 100px;
    fill: currentColor;
    border: 1px solid #EEE;
}

input[type=range] {
  -webkit-appearance: none;
  width: 90%;
  background: transparent;
  outline: 0;
}

input[type=range]::-webkit-slider-thumb {
  -webkit-appearance: none;
  height: 18px;
  width: 18px;
  border-radius: 50%;
  background: #EEE;
  margin-top: -8px;
}

input[type=range]::-webkit-slider-runnable-track {
  width: 100%;
  height: 3px;
  background: #DDD;
}

svg { cursor: pointer; }