#house {
  position: relative;
  border: 2px solid black;
  background-color: red;
  width: 500px;
  height: 400px;
}

#chimney {
  position: absolute;
  width: 100px;
  height: 100px;
  border: 2px solid black;
  background-color: brown;
  z-index: -1;
  right: 20px;
  top: 100px;
}

#roof {
  position: absolute;
  width: 520px;
  height: 150px;
  border: 2px solid black;
  background-color: green;
  top: 0;
}

#window-1 {
  position: absolute;
  width: 100px;
  height: 100px;
  border: 2px solid black;
  background-color: beige;
  top: 50%;
  right: 15%;
}

#window-2 {
  position: absolute;
  width: 100px;
  height: 100px;
  border: 2px solid black;
  background-color: beige;
  top: 50%;
  left: 35%;
}

#door {
  position: absolute;
  width: 110px;
  height: 200px;
  border: 2px solid black;
  background-color: yellow;
  bottom: 0;
  left: 50px;
}