body {
  background-color: #555;
  font-family:sans-serif;
  margin:0;
}
h4
{
  font-size: 12px;
}
body { margin: 0; text-align: center; background: #555; }
canvas { width: 60vh!important; height: 90vh!important; }
#loading { display: flex; justify-content: center; align-items: center; height:100vh; font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Helvetica Neue", sans-serif; color: #eee; font-size: 12px; }