html, body {
  margin: 0;
  padding: 0;
  height: 100%;
}
body {
  font-family: monospace;
  font-size: 12px;
  background-color: #000;
}
div#screen {
  width: 100%;
  height: 100%;
}
div#loading {
  display: none;
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  color: #fff;
}
div#preview {
  display: none;
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  color: #fff;

  width: 540px;
  height: 540px;
  background-color: #000;
}
div#container {
  position: relative;
  width: 540px;
  height: 540px;
}
div#main-horizontal {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}
div#main-vertical {
  display: flex;
  justify-content: space-between;
}
div.vertical-glyph {
  width: 265px;
}
div#l2-l3-glyphs {
  display: flex;
  margin-top: 10px;
}
div#zoom {
  position: fixed;
  top: 0px;
  left: 0px;
  height: 24px;
  background-color: #fff;
  color: #000;
  font-size: 24px;
  font-weight: 700;
  line-height: 24px;
  vertical-align: middle;
  text-align: center;
}
div#l2-grid {
  position: fixed;
  top: 440px;
  left: 0px;
  height: 16px;
  background-color: #fff;
  color: #000;
  font-size: 16px;
  font-weight: 700;
  line-height: 16px;
  vertical-align: middle;
  text-align: center;
}
img {
  vertical-align: bottom;
}