*{  box-sizing: border-box; }



#outer{
  background-color:#20cccc;
  width: 80vmin;
  height: 80vmin;
  margin: 0 auto;
  padding: 12vmin 11vmin 15vmin 11vmin;
}

#secondring{
  background-color: #046c84;
  padding: 13vmin 7vmin 15vmin 7vmin;
  height: 52vmin;
  
}

#innersquare{
  background-color: #1b1bff;
  padding: 16vmin;
  height: 36vmin;
  
}