.wall {
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  background-color: greenyellow;
}

.remind {
  position: relative;
  left: 0px;
  top: 0px;
  width: 50px;
  height: 50px;
  background-color: pink;
}

.ground {
  position: relative;
  left: 50px;
  top: 0;
  width: 0;
  height: 0;
  background-color: white;
}

.head {
  position: absolute;
  left: 0;
  top: 0;
  width: 50px;
  height: 50px;
  background-color: blue;
}

.body {
  position: absolute;
  left: 0;
  top: 0;
  width: 50px;
  height: 50px;
  background-color: aquamarine;
}

.barrier {
  position: absolute;
  left: 0;
  top: 0;
  width: 50px;
  height: 50px;
  background-color: gray;
}

.target {
  position: absolute;
  left: 0;
  top: 0;
  width: 50px;
  height: 50px;
  background-color: red;
}