body {
    position: relative;
    margin: 0;
    width: 100%;
    height: 100%;
    font-family: monospace;
    white-space: pre-line;
    text-align: center;
    background-size: cover;
    overflow: hidden;
    background-color: black;
}

#video {
  position: absolute;
  top: 0;
  left: 0;
  min-width: 100%;
  min-height: 100%;
  margin: 0 auto;
  z-index: -1;
}

#altitude {
    position: absolute;
    top: 0;
    left: 0;
    margin: 0;
}

canvas {
  display: none;
}

a {
  color: palevioletred;
  text-decoration: none;
  font-family: sans-serif;
  font-style: oblique;
}

#tag {
  position: fixed;
  bottom: 1%;
  right: 1%;
  z-index: 2;
}

#stage {
  top: 0;
  left: 0;
  position: absolute;
  z-index: 3;
  width: 100%;
  height: 100%;
  margin: 0;
  background-color: white;
}

#loading {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translateX(-50%) translateY(-50%);
  z-index: 5;
}