*,
*::after,
*::before {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  text-decoration: none;
}
html,
body {
  height: 100%;
  color: #41ff00;
  background: #000;
  font-size: 18px;
  font-family: "Courier New", Courier, monospace;
}
a {
  color: #41ff00;
  margin: 0 10px;
}
label {
  margin: 0 10px;
}
.root {
  height: 89%;

  padding: 10px;
}
.root h1 {
  margin: 0 130px;
}
.nav {
  background: #000;
  height: 75px;
  outline: #41ff00 solid 1px;
  display: flex;
  justify-content: space-around;
  align-items: center;
  padding: 0 50px;
}
.visual {
  display: flex;
  justify-content: center;
  height: 99%;
  position: relative;
  margin: 5px 0 0 0;
  border: 1px solid #41ff00;
  overflow: hidden;
}
.el {
  width: 100%;
  max-width: 50px;
  min-width: 1px;
  background: #41ff00;
  display: inline-block;
  margin: 0 2px;
  display: flex;
  justify-content: center;
  align-items: baseline;
}
.el > h3 {
  color: #cd0000;
  margin: 15px 0;
  font-size: 1vw;
}
@media screen and (-webkit-min-device-pixel-ratio: 0) {
  input[type="range"] {
    overflow: hidden;
    width: 80px;
    -webkit-appearance: none;
    background-color: #299704;
  }

  input[type="range"]::-webkit-slider-runnable-track {
    height: 10px;
    -webkit-appearance: none;
    color: #cd0000;
    margin-top: -1px;
  }

  input[type="range"]::-webkit-slider-thumb {
    width: 10px;
    -webkit-appearance: none;
    height: 10px;
    cursor: ew-resize;
    background: #41ff00;
    box-shadow: -80px 0 0 80px #cd0000;
  }
}