html,
body {
  margin: 0px;
}
.canvas-holder {
  position: fixed;
  top: 0;
  right: 0;
}

canvas {
  display: block;
  /*border: 1px solid #444444;*/
  min-width: 0;
}

.start-text {
  position: fixed;
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  top: 50vh;
  left: 50vw;
}

.selection-container {
  background-color: #ddddddaa;
  position: fixed;
  height: 5em;
  width: 12em;
  top: 5vh;
  left: 80vw;
  padding: 0px 0px 30px 0px;
}

.glow-selector,
.width-selector {
  margin: 10px;
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
}