<!DOCTYPE html>
<html>
<head>
  <style>
    div {
      transform: translateY(5em) translateX(5em);
      background-color: rgb(160, 160, 255);
      width: 20px;
      height: 20px;
    }

    #first {
      font-size: 20px;
    }
    #second {
      font-size: 15px;
    }
    #third {
      font-size: 10px;
    }
    #fourth {
      font-size: 5px;
    }
  </style>
</head>
<body>
  <div id="first">
    <div id="second">
      <div id="third">
        <div id="fourth">
        </div>
      </div>
    </div>
  </div>
</body>
</html>