Codecademy - Practising CSS (Example 3 - CSS Code)

body {
  background-color: rgb(239, 217, 202);
}

#box {
  border: 10px solid black;
  width: 200px;
  height: 200px;
  margin: 25% auto;
}

#left {
  border: 5px solid red;
  width: 90px;
  height: 190px;
}

#right {
  border: 5px solid blue;
  width: 90px;
  height: 190px;
  float: right;
  position: relative;
  bottom: 200px;
}