html, body {
  margin: 0;
  padding: 0;
  background: #008080;
  font-family: 'MS Sans Serif', 'Tahoma', 'Geneva', sans-serif;
  font-size: 11px;
  color: #000;
  height: 100%;
}
#stage {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100%;
}