body {
  margin-left: 20px;
  margin-top: 20px;
  color: #fcfcfc;
  background-color: #222;
}

/* outline */

ul {
  float: left;
  width: 450px;
  height: 750px;
  margin: 0px;
  padding: 8px;
  border: 1px solid #555;
  border-radius: 16px;
  box-sizing: border-box;
}

li {
  display: flex;
  padding: 3px;
  list-style-type: none;
  background-color: #444;
  border-radius: 8px;
}

li:focus {
  color: #fff;
  background-color: #666;
}

li:not(:last-child) {
  margin-bottom: 8px;
}

li > .elt-label {
  flex-grow: 1;
  padding: 2px 0px 2px 4px;
}

li > .elt-rep {
  display: flex;
}

li > .elt-rep > div {
  padding: 2px;
  margin-left: 3px;
  text-align: center;
  width: 60px;
  background-color: #333;
}

li:focus > .elt-rep > div {
  background-color: #555;
}

li > .elt-rep > div:first-child {
  border-radius: 6px 0px 0px 6px;
}

li > .elt-rep > div:last-child {
  border-radius: 0px 6px 6px 0px;
}

/* display */

canvas {
  float: left;
  margin-left: 16px;
  background-color: #020202;
  border: 1px solid #555;
  border-radius: 16px;
}

canvas:focus {
  border-color: #aaa;
}